No I do not regret anything, I use them to learn my lesson and avoid the same mistake as much as possible. Regretting something is just a waste of time. It is always best to move on and be knowledgeable and learn from the past mistakes. Though I did sell majority of my token when I see a good percentage gain so it is not something to have a regret.
It seems to me that I should regret that I spent almost all of my Bitcoins back in 2016, when I earned money using the cryptocurrency market to buy such things that I liked and my family needed. Almost the cryptocurrency market was the only source of my income, but I took the cryptocurrency earnings very thoughtlessly.