Depending on how bad you are, anything you try could take days, weeks or months. It can be done, I did it using method number one, I also always keep this in mind, Aim Aim Aim...Follow thru. I concentrate on aiming, even saying it out loud if I have to and let my subconcious release. Our biggest mistake is we try something for a week and if we're not fixed. it doesn't work. One thing does not work for all people, sometimes what works for me will not work for you, and sometimes it takes a combo.
See if either of these will work for you: at 5 yrds use an 8" paper plate, for 3 days come to full draw with an arrow, aim at the plate for a full 6 seconds, and let down, about an hour a day. Then for the next three days do the same thing, but release every fifth time. Then back to 10 yards and a 5" paper plate, same basic sequence, 3 days aim and no shooting, then 3 days every fourth shot. Fifteen yrds and a 4" paper plate every third shot on the last 3 days. Then finally 20 yrds on a 3" paper plate and on the last 3 days, every other shot release.
or their is rotational aiming: 30 days. on a regular spot target, put a 3" spot where all the hours would be on a clock face. For the first weeks, one hour a day, practice aiming at all the spots, but not in order. If you always come from the top, vary it, come in from the bottom, next time from the left side and so on. Hold each time for 6 full seconds. Start at 10 yrds, after week one, shoot every fourth time, week three 15 yrds and shoot every third time, and week four every other shot. All one hour a day.
Finally blank bale shooting: (1 hr each day) At 5 yrds for the first few weeks, draw with an arrow and release, but not at the same place, scatter your shots. Then for two weeks, draw and with eyed closes feel the proper shooting form before releasing.
If you can't get it worked out, get a coach. I wish you the best!
South Dakota - Iowa