What is a quick way and effective way to clear skin?

I am currently on end of term holidays, meaning I have 2 weeks off school, and I am determined to clear my skin and get rid of the oils and dirt clogging my pores. I wouldn't exactly say I have acne but my face is very spotty and I feel as if I am not to far off it so I want to do all I can to clear my skin. I usually wear a fair bit of make up to school which is probably a main cause of my oily and dirty skin, so I have already decided that I wouldn't wear make up for the holidays, unless going out. I switch between a range of products including Neutrogena Rapid Clear 2-in-1 Cleanser/Mask, Clearasil Ultra Deep Pore Gel Wash and Deep Pore Scrub, and when I do wear makeup, before I clean my skin with ONE of the products listed before, I wipe of foundation, eyeliner etc. with Derma Intensive 3-in-1 fragrance free facial wipes. I wash my face in the morning and at night before bed and switch between products, but yet nothing has really worked for me. If anyone has a non-scaring, natural and effective way to clear skin, please share as I am desperate and determined to clear my skin. Thanks :)