gastritis for 4 years, nothing has changed

i’m so sorry to bombard anyone with this, but i need to reach out somewhere. if there’s any chance even just one person will have some kind of advice, i need to take that chance. i’m only 22 years old. i was diagnosed with gastritis through an upper endoscopy 4 years ago, when i was 18. after restricting my diet and then still not being able to eat enough of it, i ended up losing too much weight, went to the hospital for refeeding syndrome, and the dietition there put me on kate farms peptide 1.5 formula. thankfully that helped me get most of my weight back, but i’ve been drinking them for 2 years now because even they still make my stomach feel awful. i’m constantly bloated from the time i wake up and it only gets worse throughout the day. i constantly have gas in the form of burping, but the burps always get stuck and i literally have to concentrate so hard for them to come out. they feel like a cotton candy machine that just keeps spinning. it doesn’t matter if i eat or if it don’t eat, but they do get worse when i do eat. i’ve noticed that brushing my teeth after every formula, getting rid of the warm formula still in my mouth, helps with that plus the stomach pain a little bit. not sure if that has to do with bacteria? the formulas i drink are literally the cleanest, most non allergenic thing i could possibly drink and the proteins are broken up so much. i spend $700 on them every month (way too much money, i can’t really afford it) and that’s only to drink 3 a day when i’m supposed to drink 4 a day. i just can’t afford 4 a day. each carton is 500 calories so i know i’m not hitting the daily calorie intake that i need. and most days i can’t even finish all 3 because my stomach just can’t handle it. i was put on 40 mg prilosec and carafate 3 times a day. i’ve noticed that if i miss taking even just 1 carafate, my burping becomes 10x worse. i’ve noticed that sometimes taking tums when i have hunger pains at night makes my stomach worse the next day. currently i’m struggling to get the burps that keep reforming out because of this and my acid reflux has been worse. mouthwash and floss make my stomach a lot worse, i recently just had to buy unflavored floss after many attempts with regular floss. i feel like if this was just gastritis, i would feel better by now, considering everything i’ve tried and everything i’ve cut out for all this time. i live somewhere that doesn’t have very good healthcare or doctors. this daily stomach pain and what it’s done to my mind and body have genuinely destroyed my quality of life entirely. i can’t focus on anything (school and reading :( i was really hoping to be in college to work towards getting out of my severely neglectful and abusive household by now), i can’t wear the clothes i want to wear due to my severe bloating, my insufficient caloric intake has caused muscle fatigue so i can’t do too much without feeling weak and shakey, i have to constantly sip on these formulas from the moment i wake up to when i go to sleep and it’s still not enough time with how slow i have to drink them, my hands are literally never free. i have no family support, no help, nothing. i’m only 22 and have been suffering with this since i was 18. i don’t have any idea what i’m doing or what i should do, but i can’t keep living like this. i’m so far past my breaking point. if i can’t fix this, i have no future. this is not at all sustainable for me. i’ve considered a feeding tube, but my living environment is not clean enough or spacious enough for that. i’ve never even had my own room. i have to share a room with my mother. like i seriously can’t. everything is too much and i’m just so lost.