I second some of the other members on the dry fire training. Virtual training is also worth a look. WPSN (warrior poet society network) is a platform I’ve been using here lately. If you aren’t familiar with Warrior Poet Society, it’s an entity started by John Lovell, a former Army Ranger turned instructor. He has some free videos on YouTube and offers WPSN as a paid subscription service like Netflix. It’s like $10 a month and has his virtual defensive rifle and pistol courses you can watch. There’s also some hands on defensive training on there and various other videos. He’s got hours and hours worth of training on there, certainly worth the $10 to try it out for a month.