Vaginal infections.after using garlic the clumpy discharge stoped and a thick white one started is the infection gone?

Probably not: Garlic does not effectively treat any infection; it's a folk remedy with no science behind it. The type and amount of vaginal discharge can vary a lot; if you had an infection before, you probably still have it. See a doctor or clinic for proper diagnosis and treatment. At your age, STDs are the main causes of vaginal infection, assuming you are sexually active -- so don't delay.