Well, take advantage of the group being small and go do something you enjoy and take them all, it can be an outdoor activity, an amusement park, museum, something you like and im sure the people will also like the experience. Take a small cake just to blow the candles and have a good time with all the people you care about. Don’t compare yourself to others, do it in a way you enjoy and share it with who matters.
Celebrate all the things!