Don't change your brake angle, you would be setting yourself up for far more issues down the road.
Dude, get off the mall ninja forum that you heard that on, that's the stupidest most uninformed answer to a problem.
It sounds like you are pulling at the trigger, not squeezing to a crisp break, hence it canting on your follow through. Also, you may not be shouldering the rifle properly in addition to that, compounding your problem. Slow down. Breathe. Follow through.
Practice. I don't know what your level of experience is, or how much you shoot, but unless it's 500 rounds weekly, you need to practice every time out. Proper technique isn't bestowed on anyone.