I agree, squats and deadlifts. Do you have any resources you would recommend to check out beyond these? Thanks!
Alan Thrall runs a Sacramento gym and has a number of videos on technique: https://www.youtube.com/playlist?list=PLibo-Z1-9Z6jPVfvHhy0v...
2 - Failing (1), find one on the internet that does online coaching. Film yourself and pay for feedback. I have no experience with him, but George Leeman is strong as hell and knows his technique. You could start here. https://www.muscle-massochist.com/services/
3 - If you're in sf, I have a strong recommendation. (Your username may be old.)