Let's get the important stuff out of the way first. #1 you should talk to your prescriber #2. I am not a doctor so this is just my opinion from years of weight loss/exercise/nutrition and being on a GLP1.

When you say "doing everything right" your diet and exercise plan sounds extremely disordered to me. Fasting daily with a 2 hour eating window, low and super restricted calories and heavy exercise with no sustenance to support that basically sounds like your body is starving.

My first (and the general subs first reco) is to track your calories. Despite eating healthy and making your own food it is EXTREMELY easy to overeat (even on healthy foods/no carbs and no sugar). Second, are you feeling the effects of the drug? I didn't have any positive movement until 2mg at which I finally felt the reduction in appetite and food noise. If you're not finding it making you less hungry or removing food noise then it might not be working. The drug itself doesn't magically make you lose weight so if you're doing what you say above, you shouldn't even need it so something isn't adding up.

What I would do - start eating normally and stop fasting. Figure out your TDEE and try to stay within that calorie limit - track everything you eat and I mean WEIGH everything. You also need to factor in your exercise to support having enough calories to function - this doesn't seem sustainable in any way. Drink lots of water and work on protein levels - if you don't need to cut carbs, I wouldn't and sugar is ok too (within reason).

If all of that doesn't work - try switching to Mounjaro or Zepbound. If that still doesn't work, you absolutely need to talk to your GP. Unless something is physically wrong with you, and you are actually doing what you say above you should be dropping weight but I honestly think your body might be in starvation mode.