Relearn the process of shooting with a loop of string, then a bow you are unfamiliar with (very light draw weight).
Then most important place more emphasis on the process than the result. Target panic often results when one misses and feels bad about it. We will all miss...often. But the process is 100% within our control.
The gimmicks of closed eyes, blank bales, drawing without shooting, etc. are all just short term "fixes" at best. The problem is wrong thinking.