I don’t think anything is unrealistic if you believe you can do it.
Use a password manager: Safer, easier, better.
The future of databases is in the cloud.
If you are ever in trouble, don’t try to be brave, just run away.
Only by working harder than others can you be more successful than others.
The wisdom of hindsight, so useful to historians and indeed to authors of memoirs, is sadly denied to practising politicians.