I used to feel like that too but each time you fail, you learn something. If you choose to accept this is just how it is, then that is what you will get. The choice is yours.
Repeat after me: "today is a new day and I will try again, this time with more knowledge than before. Because I am worth it". Even if you don't feel it, say it. And then say it again and again.
You came here and posted today...so there is HOPE.