Good day Lopt,
Often intense fear, anxiety and/or depression might be caused by a hormonic imbalance (chemical imbalance if you will). If you have not been diagnosed with any of these and you do not think this is the issue, there might be something holding you back.
What I would advise you do is meditate on the root of this issue, and find the cause. After you have found it, attempt to confront it, often it is as simple as acknowledging that there is a problem to be fixed that resolves the issue.
If you have any further questions or wish to talk to someone, feel free to contact me.
All the best with your art,