I have actually avoided futures trading for a long time and that was a decision I had to take for the sake of continuing my big investment plans. I definitely learned a lot from trading futures - but it's hard to avoid getting greedy when the market seems so optimistic. Everyone remembers how the price movement a while ago liquidated so many long positions - no one knew that the price would drop to $91K when the price had already hit ATH at $104K, but it happened.
Its actually really scary that people see futures trading or rather any kind of trading as part of 'investment' so I am glad you saw the light.
You are right about the greed, so it is a lot more steps than just avoiding trading. But avoiding the old sources of that greed. I deleted my old Telegram, my old Twitter, my old emails. Just so I don't see again all the ads and spam and people showing off.
Everybody shows you their good trades, some bad ones. Very few admit if they got cooked.