Proactiv,skinId,Murad?

wellll its summer, im working earning my money so i can buy clothes,shoes, and ect. so whenever school starts you knoo(: well yeahh and HAD 500$ nad now i onlyy havee 150 dollars , i need advicee i still need to but clothesss lotssaa clothes(; and well i owe my brotherr 40$ plus my sis 20$ so thats 60$ i owe in total and then my clothess.?!!! i waist like 100$ on 3 shirts.! so thenn.! no clothess for meee plusss i need to buy some skin care thingg especiallyyy.! so what is the most effective cheapest skin care product that helps my facee i mostly have pimples and ecne on my forehead so with one do i pick? skiid proactive or murad or any other onee?! thankkss