Psychology is the general study of mind, therapy is putting that knowledge to use to alleviate suffering.

And a lot of therapy is concerned with the way that we sabotage ourselves. Consider alcoholism or gambling. Addicts, for instance, are people who spend great time and effort, could be said to make a career out of, self sabotage, yet no one would say they are unworthy of help.

You feel you have crashed yourself into the ground. But inside, you have a desire for healing. (Note, you 'accidentally' said 'I DON'T think I am undeserving'....of professional help. A slip of the keyboard!) When you decide to act, a therapist is there to assist in this process. And the first step is deciding that you want to put the effort in.