Cutting depression anxiety?

I cut a little over a year ago and started again recently. I need help I'm sure of it. I tried getting help by asking my dad but he just denies I have any problems. I want all this to go away. I have anxiety and depression it's been affecting me for 3 years now. If I tell the school consular I need help what will happen?..I want to know what the counselor would do for me? I need help I hate my life. But my dad won't get it for me.