HELP

I an a parent with three children. somtimes they could push me to the limit. I find my self been very angry at them. I feel like I am in need of some what anger management class or direction. I don"t want my children growing up with a parent that was always mad or angry at them for the small things they do. I love my children so much that i don't know if I am a good parent or not. I beg for help.