Perhaps you should wait until Retatrutide becomes available, and in the meantime start eating and exercising as if you had just started the injections.
Making a point of carefully planning your daily meals so that they are within your required calorie deficit, and will improve your gut microbiome while meeting your fibre and protein needs.
The Zoe food science podcasts are a good starting point when you want to shed excess fat without damaging your health. If your gut microbiome is typical of someone raised on the average UK diet it will be working against you. You can gradually get it onside by fasting for at least 12- 14 hours every day, eating the widest possible variety of different plants, ensuring you get all the healthy oils and phytonutrients as well as fermented foods and all the soluble fibre that beneficial microbes need to thrive.
You also need to get into the habit of regular resistance training, to preserve muscle and bone strength during weight loss.
With your eating and exercise routines embedded you'll be in a much better place to start making other changes.
When you are ready to make another attempt, try to remember that the human brain is so powerful that a significant percentage of people in the placebo group of GLP-1 trials actually managed to vomit due to the nocebo effect. So indulging in thoughts of "poisoning yourself" with the injections is not going to do you any favours.
Instead, whenever you feel those undermining and destructive thoughts surfacing, ignore them and concentrate on all the benefits of finally being able to lose fat and keep it off, and remember that the injections lower inflammation levels in your body and are working throughout your system to improve your health.
I've been on Mounjaro since 2024. The only times I've ever felt queasy is when I'm distracted and forget to eat because unexpecting events have disturbed my routines.
As soon as I notice that seasick feeling I put the kettle on, because a mug of ginger tea, a handful of nuts a portion of dried fruit with a square of dark chocolate provides an almost instantaneous fix.
When I'm going to be away from home I make up snack bags to take with me. Each bag contains 15g of nuts (almond, hazelnut, walnut, pecan, Brazil, cashew, peanut, Macadamia or pistachio) with a portion of dried fruit (goji berries, dried black mulberries, dried chopped apricots, raisins, mango, dates, figs, prunes etc) and a single square of Lindt 90% chocolate (or Montezuma's absolute black if I'm feeling butch) and a an assortment of teabags (black, green, purple, Oolong, ginger, mint, chamomile are favourites).
That way if I start to feel hungry and the next meal is still not approaching the horizon I put the kettle on and offer to share my snacks.