How to stop feeling insecure and cheer up?

First, you should see the positive in the situation and realize you passed!!! Second, you know your weaknesses, which is a step towards improving on them... for example, you have trouble writing a paper because of your spelling or grammar, so have a peer or a tutor revise it for you and learn while they revise it. Third, it is extremely upsetting to hear that professor or a teacher refused to help you.. THEY COULD BE FIRED FOR THAT.. Fourth, always remember people learn differently, no two people are alike.. you just have to go about things differently... work around the situation.. Everything will workout I promise :)