The sugar is one thing but what I've noticed is you're having a LOT of caffeine.
That was me before ttc dd too.
When I tried to quit I stupidly went from 10-12 cups of STRONG coffee daily to 0 - BAD IDEA! There was an episode of eat well for less where the dad was similar (cola though) and even they didn't advocate going cold turkey! He was advised to see his dr and work out a plan to gradually reduce which I think he did over a period of about a month and even then he wasn't yet at none. Caffeine withdrawal can be horrific and can cause serious problems.
And if it's energy drinks they have other ingredients which can be similarly dangerous to go cold turkey on (honestly we have ingredients in our energy drinks here that are banned in other countries! Personally I think they should be banned here too).
So speak to your dr honestly about your energy drink consumption (it's actually quite a common issue) and how to wean yourself off safely.
On the veggies - I'm vegetarian and even I struggle with the 5 a day! And the only veg I don't like is Brussels sprouts, radishes and raw onion. For me it's due to mental health and motivation to prep food so I buy in ready prepped veg (I know sacrilege on mn! But it means I am at least eating 2-3 portions a day as "crudités")
Are there vegetables you've never tried? Maybe try a new one once a week? May help you find more you do like. Also as per pps experiment with how you cook them.
I'm not a fan of boiled veg myself - so boring! But love stir frys, roasted veg, stews/casseroles/curries, soups (if you blend like mad the texture isn't an issue I've been using soups for years to get "disliked" veg into dd 😉) also smoothies (again a small amount of veg well blended you won't even notice).
Sweetcorn isn't really a veg it's more of a carb really, baby corn is better and sweet to taste.
I've found the veggies most people like are the sweeter ones:
sweet peppers, carrots, garden peas, tomatoes, sweet potatoes, squashes (make lovely sweet creamy soups), beetroot, yams, red cabbage, cauliflower, parsnips (especially roasted)...
Roasting tends to make them taste sweeter and have a nice crispy texture on the outside at least.
In terms of your overall diet yes you need to actually eat 😂
Breakfast - doesn't have to be something too time consuming, healthier cereals, eggs, toast, crackers and cheese/pate, some fruit, fruit juice (a small glass is fine and though high in sugar healthier than the energy drinks)
Lunch - sandwiches, wraps, rolls filled with deli meat, eggs, cheese plus pickles are veggies too (I love sliced gherkins and pickled beetroot myself) you could also have things like coleslaw, sauerkraut or beetroot salad on the side. Some fruit again, a smoothie, crudités and dips (guacamole and salsa made from veggies too), also "on toast" - baked beans, avocado, creamed mushrooms, tomatoes & cheese (put tomato slices on first then grate cheese over and grill - yum!).
Dinners -
pasta is ok but not every day, even Italians don't have it every day but even when you do have it there are loads of veg based sauces you can have with it the usual is tomato but there's others.
On other nights -
sausage egg & chips are fine on occasion but you could poach the egg, do the sausages and chips in the oven (I love sausages done this way always have even when I was having meat ones - if you split them in half length ways they crisp up - lush!) and add baked beans (not the healthiest veg maybe BUT still a veg high in fibre, calcium and protein)
Casseroles - SO easy just quickly fry off meat to seal, pop in casserole dish, chop and add veggies - or be lazy like me and used pre-prepped veg it even frozen veg - add stock, herbs and flavourings either to own taste or follow a simple recipe (BBC good food are great for this) or even use a jar/packet you can even add the potatoes at this point so it all cooks together. Takes a couple hours to cook but you don't need to do anything with it just stick in oven and forget about it!
Curries - are basically spicy stews/casseroles
Chilli - again basically spicy casserole made with mince! Either find a simple recipe or use jar/packet. Veggies can include peppers, baby corn, normal corn, kidney beans even baked beans! With tinned tomatoes as the sauce base.
Stir frys - dead easy but give you an opportunity to try other veg like bamboo shoots, water chestnuts, mange tout, broccoli spears, bok choi, bean sprouts etc again simple sauces are easy to google and make but there's TONS of ready made available including quite good quality fresh ones in chilled aisles.
"Traditional" British food like shepherds pies you can add finely diced veg to.
BlueSkies I've NEVER used oil or fat when making scrambled eggs just eggs and a little milk and seasoning
You sound like a "picker" like my dd (with her it's due to her disability makes eating large meals cause discomfort) in which case definitely pre-prepped veg and fruit OR peel and slice chop to "prep" it yourself so when you want to "pick" you ca just grab eg carrot sticks, celery sticks, cucumber slices (you can't do these far in advance but could slice some of a morning for through the day), tomato wedges, pepper sticks, baby corn can be eaten raw too if you like raw carrot I suspect you'll like this, fruit (segment oranges, get an apple slicer/corer and do an apple in the morning for picking at through the day, grapes (frozen grapes in the summer are like mini sorbets...) keep it in a Tupperware dish or bowl in the fridge and whenever you want something to pick at its there.
The drinks again - gradually reduce. I noticed I was having too much caffeine again early last year (cola this time) and gradually switched from cola to fizzy water either plain or with a dash of pure lemon juice (jig lemon, dead easy to just add a squirt) or the OCCASIONAL non-caffeine sugar free fizzy drinks like fizzy orange or lemonade. I don't mind still drinks sometimes but I don't find them as satisfying and I end up being tempted toward cola again.
I still eat probably too much crisps and sweets too (I'm not a big choc person never have been but that doesn't make me virtuous as instead I like toffees and "kids" sweets like flying saucers and fizzy laces that kinda thing) but I eat less than I would if I didn't get in the pre-prepped veg, fruit, dips etc
I too think this is a great honest thread. Too often on mn people post "my diets awful I only ate chia seeds 5 times today" bollocks! 😂😂