Newfag-ish here, sorry for not being concise.
I'm horrendously dogshit at squatting. Can barely do more than the bar for 3x10 (using the bar for warm-ups) and have been stuck there for a minute now. I understand that my legs being decent in the distant past doesn't mean they're good now, but still doesn't feel like my legs can be this horrible in theory.

Am a manlet (actual manlet not 4chan manlet) with long femurs and bow legs with not too great lower back control as well, have tried using smol weights for heel elevation, messing around a bit with feet distance and angle, still an extremely uphill battle. I've been trying to go A2G, admittedly the past few weeks where I continued my working out after a few weeks break due to physiotherapy (which despite my worries in hindsight doesn't seem to have been related to squats/DL in this instance, but is where I got suggestions regarding heels and not going below parallel) I wasn't really going below parallel, yet before that when I was trying 3x5 (advised by physio to go for higher rep ranges thus the change) and not even compensating my femurs (which probably made my form more questionable, but I digress) I was slowly making progress and lifting twice as much. Particularly now even this feels daunting to the point I can't see how I was managing 3x5.

Is there any way at this point to fix my squat troubles? Don't feel like there's much of a point for me to keep going if I can't fix this. There's got to be something I'm doing (or at least viewing) horribly wrong to be performing so horribly. I know I'm still not 100% confident on my form, but fuck.