How do i get beautiful flawless skin?

I have little pimples and red marks and spots from acne the i kept picking at and i had a big pimple on my cheek and i couldn't help but squeeze it and now it red and big and i want flawless skin before i get to school again because i have this guy with flawless skin and he wants to see me and have horrible skin and that's not going to be god and i'm tried of it can you help me