I feel your pain. I've been practicing for what seems like forever to FMQ. Here are a few things that I have found to help:
If your machine has a speed adjustment, set it at a comfortable speed (for me that's pretty slow).
For those peeking bobbin threads, try adjusting the top tension a smidge lower so the top thread isn't pulling your bobbin thread to the top.
Take the curves slower, on my machine this is where I get "eyelashes", by slowing down I have cut down on the eyelash effect.
And finally, don't clench your teeth. I literally have to sew with my mouth open so I don't clench my teeth. This helps me stay relaxed so I don't go nuts and start sewing at supersonic speeds.
Hope this helps!