Anything sewn can be unsewn as we all know way too well! Make a small project, sewn just a line or two. If you have scraps lying around just sew them together. Any classes available in your area? there is no need to "make" something, just play with your machine! Good luck and we'll be looking forward to hearing from you! And you're already a success - you have the desire and ability to ask for help!
BTW I get palpitations when I start eg: to put on the binding of a large quilt. You are not alone!