Everyone has given you great advice. So much is practice, practice, practice. Definitely take a maintenance class as you'll need it at some point. Lots of good books and YouTube out there and take any class you can. I've been fortunate over the years to take from Sally Terry, Pat Barry, Jamie Wallen, Dusty Farrell, Angela Walters and Kris Viera--learned something every time. Also, if there is a long arm or machine quilters guild in your area--join! The one I belong to only meets quarterly but each meeting has a great program and I've learned so much in them it's well worth the membership and time--plus it connects me with other long arm quilters who I can ask for advice.