I'm sorry mate, but you're going to have to resit your English exam, or at least remark it. There's no way you're going to get into a sixth/ college with only 4 Cs, especially with English being D. You're going to have to go through another route like apprenticeships or BTEC's, because I really don't see you being the type for A-level.
A-Level is nothing in comparison to GCSE, so even if you do get that C in English, I'd advice you to do an easier course of higher level education. This is what your grades are suggesting, anyways.