What's Your Biggest RS Regret?

Maybe you PK'd your best friend, or died with full ______. Please share, to make me feel better.

Pre-osrs, my biggest regret was investing 45Mil (all I had at the time) in a stupid dust substance that I thought was going to be discontinued but still tradable, like the phats and disk of returning's of old. It proceeded to crash down to nothing within a day.

But I just made ANOTHER mistake - irreversible, too. I didn't make a second Blurite Sword.
Almost makes me want to restart my account, but I already bought membership and bonds for startup. so stupid lol.

My biggest regret is getting scammed I guess. This was like 5 years ago but it was an important lesson, don't trust anyone.

I regret I didn't find this clan sooner when I started on osrs, I spent many days playing alone because the clans I had tried were toxic and hostile environments and I'd been in a really nice one much like this on RS2 until everyone started being so focussed and maxing and all the chat died down both in cc and in game.
I also regret being scammed for my first ever big purchase

I regret not making a main before making a 1 def acc.

My biggest regret happened recently. I lost 3-5m in bandos boots when I forgot to sell the few i had invested in. Good job! Go Lemons!

Selling my santa hat for 500k :/

My biggest rs regret was not starting osrs sooner.

My biggest regret was selling all of my chins from 99 hunter right after i got 99. At the time they were only like 750 each and a month later they sky rocketed to over 1700 each.