I ride daily and still have some days that makes my body ache..... Working out will make your riding days better overall.
Videoing your runs can be helpful and fun but we only really do it a few rimes a year.
Demo a few boards at a good shop somewhere. Smokin snowboards is made in Tahoe/Reno and are excellent quality boards. Their women's PYT is a great all around board. Your board size should be around 144-148. In the newer tech boards. 144 more playful. 148/150 for when you start going faster again....