Don't panic! It doesn't have to be that complicated. I was given loads of baby weaning books and I never used any of the recipes from any of them. I also tend to survive on toast etc and ready meals and I'm on my third baby, in my head I'd be much more organised and prepping healthy balanced meals all the time.
It can be a bit of a motivator to eat better yourself :) I've tended to find when my babies are around 6-24 months old we all eat better. Then they get fussy and it all goes chicken nugget shaped, but never mind.
Do you have a partner - do you eat proper meals in the evening or more convenience stuff? It doesn't matter if you don't btw. It does help massively if your partner is on board and willing to pitch in in the kitchen.
Does your baby go down in the evening? It makes a big difference IME if they do, if they don't then you're often too tired and exhausted to eat properly in the evening especially if you eat in shifts with your partner holding the baby some of the time each. So if you can work on putting the baby to bed, it makes your life a lot easier on this front.
This is what I'd do, depending on if you want a fully BLW approach or more of a mixture of things.
Fully BLW:
Eat normally but at your weekly shop, make sure you buy some kind of soft fruit. Banana, plums, pear, whatever. Some plain rice cakes (no need for baby specific ones, just buy unsalted) are useful too.
Also, start to pay attention to one meal a day for yourself, either lunch or dinner. Write down a few ideas for things which are easy and quick to make. Beans or egg on toast, filled pasta, ready made soups, sandwich with some salad veg and biscuits, whatever. For dinners take it in turns with your partner to cook and start out with "proper" meals just at the weekend, and/or once a week each of you cooks a full meal. Don't be afraid to use cheat items. Bird's eye do these amazing frozen veg you steam in a bag in the microwave which taste lovely. Frozen chopped onions and herbs taste just as good as fresh. Instant noodles make a great base for a stir fry. Try making easy swaps so instead of a frozen pizza, get a kit with ready made dough and sauce, add toppings and grated cheese.
When you eat, if your baby seems interested in your food, offer them some. If it's wildly inappropriate, try a rice cake or a piece of fruit instead, but the vast majority of normal foods are perfectly fine for them. You should watch their salt intake, but they eat so little at first that you'll never hit the salt intake limit so don't worry too much about it. Once they start eating a larger quantity of food it's worth calculating the quantity of salt in a quarter of a slice of bread or whatever.
If your baby is not interested in what you are eating or they are asleep, just skip that meal for them. They will at some point start to show an interest in food and not want to skip meals any more, but it is slow going to begin with which gives you chance to ramp up slowly.
If you want to do more of a spoon feeding approach:
I'd recommend starting with one meal at a time. lunch is great to start with as it can be varied but simple. I'd do the same of making a list of quick and easy things to make. Scrambled egg is great for babies, they also like to gum on toast or you can do one fruit or veg at a time. If you have had something for dinner the night before you can save a small amount in a little pot in the fridge for baby's lunch the next day. Mash with a fork and add milk for smoothness if you want to. And jars/pouches are also great for just starting out (always squeeze the pouch into a spoon).
Breakfast is a really easy second meal to add because it can literally be the same every day and it doesn't matter. DS2 loved mashed up hot Weetabix or baby porridge.
You don't need to introduce the third meal for a good few weeks, even a month or two after starting. So again lots of time to get into the mindset and it really is ok once you get started, you'll start to think ooh maybe we can try spaghetti Bolognese or fish and veg or sausage and mash. It starts to be a fun thing rather than scary.
It's common for them to just have tastes at first, so just enjoy the process of letting your baby try food.