Front Squat Form

I do Built’s BGB, and I’ve been struggling with the front squat for some time now. I’ve been looking around online for information on form, but they seem to skip over the details of the issue that concerns me.

I’ve tried to hold the bar in the clean form, bout I found this very painful. When I do hang cleans, I find no problem with the wrist position at the top, but the additional load while squatting makes the position very painful.

I then switched to placing the bar across my shoulders and under my chin while stabilizing the bar by crossing my arms with my elbows up. However, I find myself very uncomfortable balancing the bar. At even light loads, the bar is very wobbly and unstable at first, and then eventually it settles. However, I’m worried that if I increase the load to a more practical weight, I wont be able to handle the wobble at the beginning.

So far, the exercise has been relatively ineffective as I’ve been unable to load up the bar to a practical weight and then be able to balance it.

Any ideas on any common form problems that I may be doing?