I’ve never been able to draw a bow fully, but that’s more because the only ones I’ve shot with were small & cheap student bows made with some kind of cheap plastic.I can't use the generic arrows most stores have in their sporting good sections because my width increases my draw length on my bow to the point where if I pull the string all the way back they stop short a full hand's length from reaching the wood.
You might need to find different shirt makers.I was about 5'10" and 210 lbs. senior year of high school. I was...chunky, but not actually fat (that didn't hit till my 40's). I had to keep a spare dress shirt in my locker because if I didn't keep my sleeves rolled up above my elbows, they'd get hooked on my elbows and I'd literally rip my shirt in half, or at least rip one of the sleeves half off. Now, after decades of warehouse work, I'm 5'11.5" tall and 305 lbs., and even if I dropped to an athletic level of body fat I doubt I'd get any lower than about 230 lbs., maybe even 250 lbs.
Custom & semi-custom clothes are much more affordable and available these days.