I tell my students that one of the reasons we ALL have UFOs is that the project stopped being fun and became work. One of the easiest ways to keep it fun is to look at it in segments (especially T-Shirts quilts) and as each thing is done (cutting, piecing, layout, etc) congrats yourself on the job done. We all work better when we give ourselves an occasional high five! Precise cutting and stitching come with practice and the only way you get practice is to do the job. If you get frustrated and put it to the side, you will not get better - simple. Too often you see someone get hung up on 'quilt rules'. With the exception of how fabric works or if you are submitting the quilt to be judged, YOU get to make the decisions and the rules. And, sometimes it won't work out and that's ok. It can be a wonderful donation quilt or just think of it as having 'unique design elements'.