Urgh.

I wrote an essay for my essay class and it needs mega work done to it. Only, I don't even know where to begin. So, I keep opening it, reading it, re-browsing it, and scrolling through it and I have reached the conclusion that not only is it lacking the real issue I wanted it to go into, but the structure sucks and my sentences are even worse.
But I love the beginning and I like the ending. So now what?