If you only make quilt tops you never have a quilt. Jump in and do relatively simple things first. There are lots of tutorials and people like Leah Day to help. We all start with that inner fear and intimidation but most of us conquer those feelings by just starting and doing it. Buy some medium quality muslin and make some practice sandwiches with batting and "practice" the pattern you want to do a time or two before you quilt on your quilt. It will give you confidence and a 'library' of quilt motifs.