Dreading my birthday

My 21st is in 4 days.

I'm planning on cooking my favorite food and baking/decorating a cake. Probably will play some card/board games with parents too.

Other than that, I have no clue what to do to not feel miserable. Alcohol, not an option, Skyping friends, also not an option, flying 800 miles to see my boyfriend, definitely not an option.

I know it's not the end of the world, but who wouldn't be sad spending their 21st birthday at home? I need ideas to keep myself busy and maybe have a little fun in the process