[–] 2face-Maze ago
The bar's path must go directly up and down, no deviation. keep centered with the middle of your foot. Always watch your form, and hunt more and more videos on the matter, both professional and amateur alike. Absorb all information on form and movement, mainly because it sounds a little like form is a concern. Take videos of yourself doing it, post as a 'form-check' or even just critique yourself. But never use mirrors and critique at the same time as the lift -- you will throw yourself and your form off.
Always, be safe.
[–] 0baybees ago
Due to a past injury I find activating certain muscle groups difficult. Something I learned in physio is to focus on the muscle group you are trying to work. For say glutes and hams during a squat focus as you do. On the up motion, from the bottom focus weigh in heels, imagine the hamstring stretched then contracting as you move, imagine the glutes driving the hips up and forward. I've had much more success when I'm mindful of what I'm doing, instead of just physically doing.
[–] vivalafreakshow [S] ago
Great tip, I actually tried that earlier today and it made it much easier.