There's no genie and there's no such thing as a time machine, what happened to you happens to every investor not only Cryptocurrency investors, there's no room for regret in investing, true investors always move forward and always look for new opportunities.
There's endless potential and possibility in the Cryptocurrency market forget your losses and just look for those opportunities there's no use crying in spilled milk.
Regret does not need to remember or feel regret, every investor will always move forward while correcting the shortcomings that have happened before, therefore need a small analysis before starting investing and recognizing potential coins for us to invest, never move because of the hype, because this will kill investment done, but learn the market and make an analysis of potential coins