I have not done anything specifically on my wallet. so far too well, because I'm sure, the wallet created and used to store crypto is very safe and is already created to protect its users from hackers.
The wallet has ability to protect the users from hackers but if we are not supporting it then its nothing.
We need to aware about hacker and do something that will not get us to difficult like pasting private key in phising website or unknown device or something else.