Sunshine

I have/had been on a Mistral asymmetrical snow board since the early 90's. A lot of what I learned came from trial and error. Mostly errors. I have had at least 2 alpine boards and 2 or 3 freestyle boards. I sold my freestyle boards, one alpine board, and my other (favorite - Mistral) board burned when my house burned. I had stopped using the Mistral board 2 years prior to the fire because I started having trouble with binding adjustments, techniques and age. I miss boarding a lot. I am back on skis now but I want to get back to a snowboard. I am 61 years old, have been boarding or skiing since the late 80's but my ability began to go downhill. I ski the US east coast resorts. In all of my years there has been no one who could tell me how to adjust my bindings, explain techniques or give a lesson on alpine boarding. I need help on basics. What board size and type for someone who weighs 240 pounds, bindings and adjustments, techniques for making cleaner turns without spooning the tail. Anything. I want to get back on a board. Also, is there anyone on the US east coast that could actually teach carving instead of tricks?