Not everything you code will be a smash. Or be any good. Learn from your failed ideas. Keep trying. Keep learning. Keep improving. Maybe you'll finally hit that one big idea. If you don't, you might just have skills a future employer or business partner will be looking for.
How are you coming up with the ideas? Who are your targeting to use those apps / games / products? What is the feedback, if any, you have obtained? How are you deeming it as a failure? Most importantly what would ‘success’ look like for you?