Wow - I think everyone feels that way at one point or another.
Maybe think of this for smaller projects? Like a table runner or small lap quilt. If you make a smaller project you might find it a bit less overwhelming. You will also get the benefit of less cost to "test/try" something. That way too, you'd have a small easy to work with test subjectd for the quilting ideas and you can "see" if the ideas you have are "right".