What you imagine is reality is coloured by the distress you feel. You do not need to believe every thought you have.
You are not the story you tell yourself about your experiences. What you choose to make your reality is up to you.
"I can't because..." is just the story you tell yourself. You can if you choose. You can BECAUSE you can choose.

“There is nothing wrong and there is nothing to be afraid in most of human experience. It is just that your mind will trick you into believing there is. You are always OK.”
Mara Gleason.