What do you like to do?
I tried Tomchei Shabbos once- most BORING experience of my life. I just don’t like taping cardboard boxes, and I don’t feel bad about it because chances are someone else does, and really, there are things I’m much more suited for, like helping with special needs kids and adults.
Play to your strengths. Not that it’s not a chessed if you don’t enjoy it, but chances are it’s more of a chessed if you do- you’re likely to put a lot more of yourself into it.