What steps can I take to decrease the chance of getting VACced?

While using public hacks. Not talking about Overwatch, just VAC.

Thanks for your help in advance

Just, just don't use hack.

lol, I'm not talking about avoiding VAC, I just want to know if there are good practices that can help a bit.

You should avoid using public hacks if you are too worried about VAC. As the other guy said, a hashchanger would be useful.