Your deadlift is good enough now to work with / add weight. But really, maybe you should find a coach in your area. Look up 'spine of scapula' on google images and figure out where that is on your body. Place that directly over the bar when you set up. Your arms should angle in slightly back towards you, i.e. NOT vertical. Your stance could be a tiny bit narrower too.
Press looks good. Try and bring the bar back down to your shoulders/chest at the bottom. Get a big breath before each rep. You spent a little too long with the bar at lockout after the 4th rep, and that's probably why you missed the last rep.
The angle and obstructions make it hard to judge depth on the squat. I think you might want a couple inches narrower of stance to help you get real deep, until you can get it figured out. Again, big breath before each rep, at the TOP, before you begin to descend. Do you not have access to a belt? It will help things a lot.