Once it ends it ends you wouldn't be able to go back on anything you wouldn't be able to say goodbye or anything like that you wouldn't be able to do the things you always wanted to do
Create a bucket list or something with everything you always wanted to do (stuff that is possible and easy for you to do) and at least do that first before you go anything to keep you going for longer and hopefully with enough time something good will come along and make things better for you