from your story, hopefully, everyone can learn to respect their private keys and passwords. For those who have been stuck in the high prices of 2018 then maybe Bitcoin has been a disappointment, but don't ever turn away from Bitcoin because surely the price will continue to rise.
Taking care of basics of security and ensuring about the restoration options are more important in any field and when you are dealing in crypto currencies then you must take care of all the basics very first hand.
These days making sure of backing up wallet file/privatekeys/seeds are more important so that even you will be losing access to your wallet for some reason then you will get chances to recover your funds by privatekeys/seeds. When you're failing to do proper back up, then you need to forget all your saving because without them you could never access your saving.