I can't think straight. I think my brain has become mush.
Why do you say that?
My head is full of useless and dumb ideas right now.
You have a lot of good qualities you shouldn't get so down on yourself. You can do it and be great, you should believe in yourself.
Everything I think turns into a dumb idea.
You have a lot of great ideas. You should be proud of all that you've done.