The staking rewards are distributed every day at 16:30 UTC. (If your Staking Provider has these nodes chosen by the blockchain).

Checked that you have enough to pay for the transaction (EGLD in your Available balance).

Checked that you have enough to pay for the transaction (EGLD in your Available balance).

You can stay as long as you want.

Yes, if your rewards go to the same pool (If your SP has enabled the option) where they were obtained. (Except for the legacy delegation where this is not possible).

Yes, you can accumulate your rewards for as long as you want.

The exit lasts 10 days, during these 10 days you no longer receive any rewards because your EGLDs do not participate in securing the blockchain.

After the 10 days you must go and finalize your exit by clicking on the button where you previously clicked to request the exit.