Its great to see people taking out time to help us others. Its important to appreciate these stuff. As per rest, I feel that the BEST thing you could do in terms of safety/security is to get yourself with
Hardware Wallets, which are not expensive at all, at least not IF you have sufficient Cryptos.
I would definitely recommend it especially Trezor, as it can give you the type of comfort you want and like I said, its not that costly either, so not wrong to use.