I agree with what lots of other people are saying on here about blood sugar and UPF. I would ditch the protein bars, Options, flavoured yoghurt and chocolate they probably all have sugar in. I would try and get used to eating less sugar, you will probably stop enjoying it.
In case it's useful, my food for the day looks a bit like this:
B: Kefir with a little fruit (eg. a kiwi, half a pear), some nuts/seeds (one or two from pecans, walnuts, almonds, hazelnuts, pumpkin seeds). Occasionally a boiled egg and an orange, or porridge with nuts/needs instead. I also have a decaf skimmed milk latte.
L: A big salad, which usually consists of a whole cucumber, a tomato, 1/2 an avocado, sauerkraut and some protein like a little soft goats cheese, Gouda or Emmental, an egg, tinned sardines, smoked mackerel. I might add some olives, olive oil, peanuts, nuts from the above. I WFH mainly but when I go to the office I bring this with me.
S: Nuts, might include a Brazil nut or two and some pistachios and/or above mentioned ones. Some fruit (eg 1/2 an apple). A square or two of 95% chocolate. Sometimes I mix the nuts and fruit in a bowl with kefir or Greek yoghurt and add a tsp cacao powder which makes a really nice 'chocolate pudding').
D: Here are some examples: A big tray bake of leeks, peppers, courgettes and garlic with haddock fillets. Baked salmon with homemade tahini and miso sauce (mix tahini and miso with hot water), with purple sprouting brocolli and cauliflower. Homemade green chicken curry with loads of vegetables in the sauce. Chilli made with steak mince and kidney beans poured over carrots, brocolli and cauliflower. Sausage and butter bean casserole with a big pile of veg. Lentil and vegetable stew with a big pile of veg.
I don't generally eat pasta/rice/potatoes/bread with dinner although DH snd DS have them (wholegrain types) with the same above meals. But I have a huge pile of veg.
I don't usually eat anything after dinner, but if I really wanted something I would have something similar to my afternoon snack.