I think my worst habit is starting too many projects, then not finishing them...especially if something goes wrong...I hate ripping out...and usually will put it away and get back at it when I either really have the time, or start feeling too guilty that it is set aside.
Patience I do have a lot of(except ripping out)....that is very helpful with quilting. Leaders and enders I use all the time, and when I want them to be productive, will sew together squares as the leaders/enders...after awhile, you have lots of them to play with to put together a quilt...usually make 4 patches or 9 patches with them.