NEED TO LOSE WEIGHT FT!!!! help?

dude dont tell a 14 year old to try acai berry that leads to liver problems im 14 and a very good way is to replace all the other drinks with water it will cut your calorie intake in halve trust me! i was 143 at the age of 13 so i started doing that and i am now down to 124 please dont take pills i have a liver dieses and colon problems and plus acai berry is not healthy.