Great advice Feline Fanatic.
I quilt on my Janome and now on a Pfaff and I find the hardest part is just actually getting started. So stop putting it off and give everything a try. Make up scrap sandwiches so you don't feel you "have to get it right" because that's probably the feeling that is holding you back.
Once you take that first step and relax more about what you are doing you will get into the creative groove and start loving it.