Comrades who just don’t give a shit and say whatever you want… how do you do it?

I am so conflict-avoidant that I’m now at the point that most people in my life don’t actually have any idea I’m even close to being a commie. I really want to start expressing myself more openly and honestly - especially since I feel like I’m actually harming my mental health by not saying how I feel - but I always feel held back. Any tips on improving this are appreciated.