Only major problem is lower back pain. I tried so many different things. I tried keeping my back vertical but that was awkward and didn't feel like I was working anything and I still got lower back pain doing that. Is my back supposed to be at an angle (relative to the wall). When I do it my back is straight (I think it is) but it's not at 90 degrees relative to the floor). I was doing squats the same way as this example video I have shows.
My lower back is sorta buckling because it can't support the weight on my shoulders when I'm in the lowest position, at least that's what I think is happening. I lowered the weight I used to do and I still get lower back pain. I'm looking straight ahead and keeping my head forward. I'm not pushing off my toes or anything.
Should I breathe in on the way down, hold, and exhale on the way up? I can't breathe normally for the whole exercise for some reason (or any of my exercises, but I've read that it can help to breathe in patterns).
Minor problem is shoulder strain but it's not that bad. I just really stuck out my traps.