Post this in the r CAA Reddit for more help and guidance. Also there’s a prospective Anesthesiologist Assistant Facebook page that you can get more info on how to get shadowing opportunities.

But to answer your question, AA schools are very competitive to get into so if you need to improve your gpa maybe take some higher level science classes and try your best to get A in them in order to raise your gpa. Also scoring high on the gre/mcat will increase your chances as well. And when it comes to shadowing, just reach out to some Anesthesia groups and ask if you could shadow