I would think you need to find out if you like the lifestyle and really want an RV, before you make the plunge into ownership. I suggest you rent a smaller gas unit for weekends (long one if possible) and take some trips. This will give you an idea of the life style and a chance to get comfortable with the unit. You will gain lifestyle experiences as well as some driving and handling experience. If things go well, then you can proceed with the purchase decision.
Best of luck and safe travels!!