有没有英语语法错误的

有没有英语语法错误的
I often feel stressed before exams.I don’t believe that I can do a good job because I once failed before and I don’t think that I am well-prepared this time.In order to release the stress,I like to do some physical exercises and have a good rest.The next morning,I will tell myself to try your best no matter whether you’ll success or not.According to my own experience,I think keeping self-confidence is the most effective way to deal with stress.Trust yourself and you can overcome any difficulties.And also don’t always expect too much.The more you want,maybe the less you get.Just try your best and take it easy,you will feel more comfortable to fulfill your dream.