the triggering part is password haha, it's too long so i take lots of time to remembering it just in case T_T
Use a password manager like KeePass2[1]. That way, you'd only need to remember one long password(master password), then you're other passwords would be as long as it can for maximum security(at least 40 characters). Just make sure your master password is secure as well.
[1]
https://keepass.info/[2]
https://bitwarden.com/