Came to SHcom a few years back with a similar issue, likely a single-lung hit on a doe, got bumped during track (didn’t wait long enough before we started tracking), found hella blood the next day but by all signs, the deer was long gone from anywhere we had permission to track (all neighbors within a mile or so radius). Felt like crap, thought about punching tag as a punishment to myself for screwing the shot up, property owner and SH users all made me get back in tree the very next weekend and though I didn’t shoot anything else that year, I saw a lot of good deer. Two years ago, backstrapped a doe with a pass-through, she trickled blood for 400 yards and several hours, tracked her well into the next day, ended up finding a mildly bloody bed in the middle of a cornfield where I assume she let her “flesh wound” heal, no blood trace of her anywhere after that, no pics or sightings at neighbors…
A week later she was out in the alfalfa, a little hunched and wobbly but keeping up with other does without issue. Scarring visible right over her lungs. I pledged to shoot her if she came under my tree, but I think she is still alive to this day. Saw what I think was her this summer with a fresh set of twins.
Nature balances itself, despite how crappy these instances make us feel. I think you should get right back into a tree and shoot the first, next, any buck that makes you happy, same guy or not. Don’t let it hold you back from moving forward.