Andalite
Elite Bodybuilder
Well all those reasons are actually good because it is a PR, not just the weight moved. Props
I did 95lbs but my friend was putting his hand on my back so I could go on my heels and not fall down lol. They are brutal
Good to see you thinking out of the box regarding progression, mate. You should read this article: Strength Training with Single Double Triple Progression
You should start doing OH Squats with a broomstick. You need to work on mobility so I'd suggest you look at those links I posted for you in that strength standards thread (I think).
It will take you roughly a couple of months to get that down. After that, you should graduate onto using the regular barbell.
Some tips on OH Squats:
1.) Pull the bar apart. I suffer from massive shoulder issues and I can attest to the fact that OH Squats do NOT hurt my shoulders whenever I try to pull the bar apart.
2.) Take a narrower stance with your feet and push your knees out.
3.) When you're at the bottom of the squat, try to "stretch" like you do when you wake up in the morning (if you don't do that full body stretch towards the ceiling in the mornings thats fine - I just hope you know what I'm talking about )
4.) Elbows must be locked out completely.
5.) Do them right at the beginning of your workout. Expect to spend 15-20 minutes twice a week doing these. It doesn't take much time but the practice will add up to a lot over time and that will make you good at them.
6.) Don't think in terms of legs or hands or feet or things. Think solely in terms of hips to floor.
7.) You mentioned having someone support you from behind. You need to work on Ankle Mobility as well. All this has been included in that post I made for you. As you do the mobility drills for a whole month - like 3-4 times a week, you will get much better at them. It just takes time and once you get the hang of it progression is pretty quick.
Good luck!!!