Welcome aboard mdewals
I generally do the required 24 hrs then move over a grid or 2 depending on where I am.
Then move to a choke point ( where Atlantic meets Irish Sea either end or approaches to Gibraltar ) where I know traffic will move thru.
How you play is entirely up to you.
I never go home unless out of ammunition or fuel,
Some patrol for 3/4 weeks then head home,
Others play differently still.