Stick to it!
There's little chance of keeping slim, unless you stick to a diet.
If you want to sound like a native speaker, it's easier if you choose one dialect and stick with it. Native speakers don't usually mix dialects in everyday speaking.
stick / stuck / stuck, to get stuck
When the school had no books or paper or pencils, she wrote the alphabet on the ground with a stick.
The walking stick serves the purpose of an advertisement that the bearer's hands are employed otherwise than in useful effort, and it therefore has utility as an evidence of leisure.
Kids these days have no imagination whatsoever. Only a nationwide revolution and sweeping economic reform will bring the hoop and stick back into vogue.
What police thought was a distressed cat turned out to be a man practicing the cuica, a drum which produces noise by rubbing a stick attached to the drumhead from the inside.
This neighborhood has more homeless people than you can shake a stick at.
Children, don't play with those sharp sticks. / After the accident he has to use a walking stick.
He used to like riding on giant tortoises which he persuaded to advance by hanging a lettuce from a stick which he held in front of the tortoises’ nose.
Why are you sticking this announcement here? The message board is over there.
Do you prefer automatic or stick cars?
Hold this stick still! We don't wanna do any barrelroll here!
Come on, Joe. Don't be a stick in the mud. Go to the party with us! When you told Nancy how fat she is, you really hit her where it hurts.