Tell me your worst crypto trading mistake and I will judge you in one sentence

Title says it all but to explain further, Tell us your worst crypto trading mistake for example fomoing into a shitcoin or buying a coin at its peak. Tell us and I will reply to your comment and summarize your entire crypto trading strategy/ personality in one sentence. I want it to be a light hearted thread because I feel like everyone needs a laugh right now. I need more characters to fill the 500 character post minimum but I don't know what else to say D:

I'll go first and you guys can shit on me all you want:

I bought OMI at its peak

EDIT: Reading all of your horror stories has humbled me deeply