Weight loss secrets?

Sarah
Girls I'm supper worried! I need to lose 20 pounds, I already lose 5, I want to do it before July. Any secrets you have? Mines are drink lots of water, avoid sugar and junk food, exercise 3 times a week, take laxatives, drink tea, etc. but I need some tips! Please help. I was thinking to be stupid and become bulimic but I can't do that. I'm desperate. I also can't stop eating at all because my parents force me to eat. I gained 11 pounds since last year but I don't like how I look now. I'm 176 lbs and I'm 5'7