Did you ever thoroughly, properly plan a way of storing your seed safely and backups for it?
- If you're not storing your seed safely, there are so many possible ways things can go wrong. Are you storing your keys on a piece of paper? Ever thought the text may fade away? Ever thought what you'd do if a fire started in your house while you're away? What if your dog eats your paper? What if your little kid finds it and decides to rip it into multiple pieces or even throw it away without your knowledge? Think of all the possibilities and find a solution to cover most of them. The solution can be as simple as using some washers, a screw and a nut.
Storing your seed in a paper can be a costly risk to take, knowing how fragile paper could be wether laminated or not and apart from an accident of arson it's possible ink used could carefully fade away when expired. A secure way to store your seeds is with the use of metal storage which is almost indestructible and last for decades.
https://jlopp.github.io/metal-bitcoin-storage-reviews/ Do you store the majority of your balance on a safely created, properly stored Bitcoin wallet that only YOU own (a seed generated by you)?
- Never store your coins on a centralized exchange. Exchanges have been hacked before and you don't want to be a victim of it. Just.. keep your coins safe under your own custody. Never allow a stranger to take part in your wallet's security because you never know what could go wrong. Not your keys, not your coins. Never forget this.
One of the wrong ways to start on with bitcoin is having you coins stored in any centralized exchange as you can go to bed as a millionaire and wake up poor the next morning hearing the news that such exchange has been hacked or for any reason concerning your data's your account has been frozen as simple as that. Having you coins stored in a non-custodial wallet where you're completely in charge of your seeds with no proxy knowledge about it from any individual on earth is something everyone should take serious about.
Having a friend have knowledge about your wallet security could be dangerous. For a friend today can be an enemy tomorrow because the future is not known and personal interests may change with time. Having someone else have knowledge about your wallet security apart from just you is no different from storing your coins in a centralized exchange.