When you start PE erections when you don’t want them and maybe lack of erections when you do want them are fairly normal.
You probably just need to spend some time getting a little bored and wrapping and unwrapping as needed.
Hanging is not a good introduction to PE, so if you haven’t come in via manual PE, it’s probably worth looking at a manual routine first.
You don’t describe your hanger. Hanger design is pretty important. There are some good safe templates that people use here. Did you use one of them?