Best ways to celebrate anniversary of a life-changing event?

Hi all, it's officially been 2 years since my ex-fiance dumped me and my life completely changed and I started over! I'm looking for ways I can celebrate how far I've come since this. I wanted to go roller-skating this weekend at the local rink, but I've got the flu at present so not sure I will be well enough. What are some low-key ways you would celebrate a "started life over" anniversary?