Post a video and we can give MUCH better advice.

Until then, here are my thoughts:

28" is probably too long for you. Height in inches, divided by 2.5 is the 'rule of thumb' for draw length. You should be in the 26.5-27" ballpark.

Are you shooting with a release? Finger shooting a compound bow is a disaster. I grew up shooting recurve bows, then tried fingers when I bought a compound, terrible groups. An expert archer at my local range loaned me a release one day, my groups went from 6-8" at 20yrds to breaking 2 arrows in 5 shots. LITERALLY in the first group I shot with the release.

Is you bow (cam/idler, nock point, rest, tiller) properly tuned by someone that knows how to tune one? If you have erratic arrow flight, there's no shooting technique you can do to make them fly straight.

Are you focusing on the shot properly? There are different techniques for aiming, so choose the one you like, and practice it.

Are you coming back to a consistent anchor point with your shooting hand?

Are you holding hard against the backwall and releasing with your BACK instead of your arm?

Are you punching the trigger, flinching?

Are you dropping your bow to watch the impact?

Are you using a peep sight? Is it set for the right height for you?

Are you arrows properly spined for your bow?

What hand/wrist position are you using (high wrist or heeling?)? Are you closing your hand around the riser, or relaxing your fingers?


Lots of scattered thought questions there, but all of them come into play.