Way back 2014, for those times that I definitely regret is the times where  I can't believe in bitcoins and other cryptocurrency. I wasted almost a year in not suppprting bitcoins. If I'm not mistaken the market value of bitcoin on that year is around 1000$ and now we can see that it increased more and more. Bitcoin gave us such things we wanted if we believe and work for it specially the time when the price drop and now it's getting higher and higher. Many of us makes their money profitable just because of increasing it's market value.