Help i feel like a hopeless loser........?

First off you need to set goals for yourself to reach. First p one test, then p one more, and so on and so on. Don't set your sights on something that you know will be hard for you to reach, because you will get disappointed, and stop trying. Each time you reach your goal, set your sights on something a little bit harder, and work to get it. The only thing holding you back is YOU. Now go study, and do yourself proud.