I forgot to mention that it should be in mobile if there is any.
I think you should try learning the Electrum Wallet. it is also available for desktop and mobile.
Maybe you can find more information related to Electrum here.
https://bitcointalk.org/index.php?board=98.0Whatever wallet you use, they already have security standards. It's just that sometimes we as users make mistakes.
My advice is when you plan to store Bitcoin in larger amounts and long-term in the future. buy a hardware wallet.