If your quilting foot has a height adjustment, look at that, too.
Too low and it drags on the quilt.
Too high and it lets the needle deflect too much as you move the quilt and can cause the skipped stitches and shredded thread and broken needles.
Play with speed, too. Too slow of a stitching gives you too much time to move the quilt and pull on the thread. It takes a bit to get "in tune" with what speed the needle moves to what speed you move the quilt and to find the sweet spot that works best for your quilting "rhythm".