it takes a LOT of practice to be able to do a pattern, especially on a domestic machine, I think that's why most stick to meandering, it's not supposed to look like "something". It doesn't look like you've got too much in there to take it out and try again. Make a small practice piece and work on it till you get your rythm and then get back on the real thing.
when I'm meandering I think of jig saw puzzle pieces.
good luck