Number 1: always be prepared to go around.
With that in mind, you can start to gradually expand your comfort zone (I'd start with gusts straight down the runway) within of course any limitations in the POH (and for now, I'd stick to demonstrated crosswind, too). At some point you will realise you have exceeded your current comfort zone and can set a (temporary?) limit until you feel ready to do expand again.
And don't forget that (especially in some types) taxying can be at least as hazardous as takeoff and landing...