Rahel,

Like Matt said, what you are going through is normal and expected.

Think of it this way: when you were young, you were in an accident and something got damaged, but never fully attended to and healed. Now you are going through rehabilitation. If it was a leg, and you had difficulty walking, would you stop going to the physical therapy after couple of times because the leg wasn’t healing fast enough for you? Would you rather continue limping?

Your belief of being a failure is not based on reality.