A teen problem

Dear public,

I have a problem, I have a lot of pimples in my face and I do not know how to eliminate them. Nowadays I am trying to drink water constantly to hydrate my skin and I wash my face three times daily to keep it clean, but these don't disappear and I usually scratch them because sometimes it's irritating when you see your face with pimples. The last summer my skin was healthy but when the classes started, the pimples appeared again. Can you recommend me something?

Please help!

Regards.

Bianca (15 years old)