I also shoot in my basement. My shot is 13 yards. Actually, I use this range all year.
I shoot blank butts mostly but sometimes I'll move a Field Logic Glendale Buck or Rinehart Coyote into the lane.
I'm still hunting though as I have a bit over a month left to introduce myself to a nice buck....or another Doe.
I practice with a purpose. I have an 11-shot shot sequence. I make sure each is correct but most are subconscious until I anchor. Then I work on making sure the target is next to the last thing I think about. My first priority is using my back to execute the shot so I will follow-through properly.
A big challenge while performing the shot sequence is to commit and move on. In other words, once I've anchored, forget that step and go tot he next. When I've aimed, take the mind off aiming. It is more difficult than one thinks to not think about earlier steps before executing the shot.
These days I'm also working with my 10-year old grandson who has reached the age (4th grade) for NASP now. I have him shooting from 7-10 yards. It is great that he is asking me for help (so I don't push it). He's been tinkering since 3.5 years old.