Writer’s block can be caused by a number of factors and you may not even be remotely consciously aware of what they are. Hypnotherapy can help you look at all the factors that might be contributing to the block. Its not as simple as putting you into a trance and suggesting that you will lose all the reasons for the block. A cocktail of factors may be contributing and may need to be tackled one by one. You may need to change your environment before you feel creativity flooding back. I have tackled this issue successfully with clients.
I can’t do anything to help you improve your writing- that is down to you 🙂