You’re not alone mate, I have been holding a lot of souvenirs useless coins too from 2017 to 2019 but I have already moved on a waste of money and time indeed. Well, learn from the past for sure most of us are wiser these days and will not gamble anymore in half baked projects.
You are right about that even though most of the dumps in my wallet are mostly from bounties and airdrops then as a newbie, I hunted for those quite a bit 
and yeah, they are just sitting there without a market and nothing to do with them so now like you said, we are wiser and even if I have to engage in bounties, I make a wiser choice now.