I failed my semester exams I feel so terrible. It's not first time I'm a total failure.

In sem 1 I failed 3 exam out of 6 and in sem 2 I failed 2 out of 6 now how can I tell my parents about it they will be so disappointed. They will never trust me now and never love me same. They already had given me chance to prove myself after sem 1 but again I failed I know that in first sem I didn't study but in second I studied I really did but still got failed. My luck is also so bad in 1 subject I failed just because of 2 marks and my friend passed just because of 2 marks. Why it's always me I know it's wrong to compare like this and also shameful but still either it's luck or hardwork I'm always behind. I'm messed up so much