Blank bale is good, but sometimes too much of it can be a detriment, especially a week at a time. Basically, you have no accuracy reference if something else goes out, and you could be reinforcing an incorrect form problem without knowing it (no reference to point it out). I like blank bale before and after practice and sometimes a whole practice. But, personally, I’d think twice before going out and shooting a whole week of it.
Back to the original question. Maybe think of some walk back practice. You said build your confidence. So start up close where you know you will be accurate. Then gradually start moving back. If something goes off, then move back up. Maybe mix in some blank, blink bale shooting as mentioned.