Just remembered that I have written the recovery seed phrase of my Electrum on a piece of paper somewhere in my place. I'm wondering what could go wrong since my place isn't too secured. How about trying to memorize it? Is it possible?
You can store this Electrum wallet key on a piece of paper or in a diary, and it is sure to keep it for a long time. The human brain is not always the same, it changes with age. The human brain is designed to forget previous memories and learn new ones, so if you're memorizing the keys to your wallet, it's more likely to get it wrong. You can lose your wallet, so you can write the wallet keys in a diary and store it in a safe place for a long time like I did.
Would you try?
What are the benefits? ... and the setbacks.
If you memorize it, you are more likely to fail, because your brain may not be in control. Sure you can use this method above it will be best.