Try to consciously laugh off hostility until you can actually do it.

A friend sent me:

It's less mental tricks and more fundamental trust. I care about only one opinion of me, and it's not mine - it's God's. That opinion is, in short, "you suck but it's ok, we're working on it". So I aim to do better than yesterday.

It is also worth noting that the only person whose behaviour you can control is yourself, so don't worry about what others choose, instead choose, consciously, to laugh it off, and over time it becomes real.

This is likely contempt - feeling superior