Hmmm this story of yours is so touching.well let me use myself as an example, I did my waec four good times before I make it. I keep doing it because I believe in myself and I know I'm going to make it. My dear it's not bad to feel like you are tired but the fact is that do not let that get into you , I believe there's time for everything and your time will definitely come.
Good luck to you dear.
Thank you so much for sharing your own experience with me, I only wrote waec twice but getting admission has been the major delay but like you said, when it's my time it will happen 🥰.