I Cant Change the Past But I Can Change My Future

I have realised something very very important. It's that.. I feel like I have stopped working at all. There's this huge number of things that I want to do but I keep all of it pending all the time and do just what is absolutely essential for that particular day (sometimes not even that) and I have started feeling really stupid for being that way. I have my exam tomorrow and it's 10:40 pm now and I literally haven't even started study. I am like the laziest person ever but I really want to change that. I take this pledge now I am going to change it. No matter what.