I see no reason regrets and what you have already done Because I believe at every stage of our life when we are making decisions we always know what we are doing and at that particular point We were making the right decision that we could I've made so instead of Regretting Why not just learn from our decision so we would be able to make Better decisions next time
I fully agree with you, at a particular time we could make the right decision, but cryptocurrencies are so unpredictable that soon everything could turn upside down and it's not our fault, not all mistakes should be regretted