You will have to socialise today even if all you want to do is stay home, keep it to the minimum you might enjoy it.
You might just want to stay home today but it's going to be hard for you to say no to people who want you to go out and have fun. You may have to do some socialising, but keep it to a minimum if you really do not feel like it, do not feel pushed into partying when your heart is not in it. On the other hand, sometimes we enjoy events more when we are less expectant.