It's so insane to me because i've trained myself to be quite in tune with my body's needs.
Turns out animals are evolved to seek out the food they need to function and thus we have the ability to actually enjoy healthy food and even get cravings for things with the specific nutrients we need at that point in time.
Thinking that food shouldn't be pleasurable is like thinking that a well-functioning diesel engine should be making horrid grinding noises and intermittently release smoke from the gaskets..

If you just stop eating so much sugar and as much as possible try to cook things from scratch, or at least eat things where you know precisely what ingredients are in it and how it would have been prepared, you should be able to regain the proper feedback from your gut and have a very healthy relationship to food.

I'd also recommend as often as possible trying to wait to eat until you're really hungry so you can calibrate your sense of hunger (but like, be smart about it, make sure to eat something if you're gonna do stuff that needs calories and stable blood sugar levels), and try to taste everything once so your body can associate that thing with the nutrients in it.
Also also try to sneak in vegetables into every meal in some way, even if it's just adding 2 peas or whatever. That'll psychologically and physically normalize it, so you start wanting it more. Your gut flora is a pretty significant part of what decides your cravings and if you consistently eat something the gut flora will change to things that like digesting those things and thus make you crave them more.