The donations that you have received is automatically transferred by Stripe to your bank account.
Please see: How are my donations processed?
As for the campaign page, you can mark it as "Finished" by going to your DASHBOARD and clicking on the green ACTIVE button next to your campaign title. Marking your campaign as finished removes the DONATE NOW button on your campaign page. People will still be able to visit it.
You can also hide it from the public. You can do this by doing the same thing, go to your DASHBOARD and click on the green ACTIVE button.