firstly, what currencies do you use?
Use electrum wallet, and while will you create the wallet, create with TWO-FACTOR auth option. Don't share your private key with anyone, only share your public address key.
if you are using erc-20 coins, you must use myether wallet with "Metamask". but use only with "MetaMask".
and i want to give a off-topic advice;
While you save your private keys and wallet passwords, save your passwords to "KeePass software". KeePass is an open-source, password manager. The software creates very difficult passwords for each of your account.
I highly recommend the software.
i do secure my private key with a simple folder and didnt know that apps like keepass exists. how secure that this keepass is not prone to hacking and phising?