You sure about that? Have you tried wallets that you can have total control because you held the the private keys? I haven't used Coinbase wallet though, but I think you don't hold the private keys so once the hackers get into Coinbase I'm pretty sure that all your crypto will be gone in as instant. I suggest you go here : https://bitcoin.org/en/choose-your-wallet, and see other options that might help you mitigate the risk of losing your coins in the future. Goodluck.