I sold 100 btc for around 20 bucks in 2011 being there but yes i am still very active today things have changed a lot but never lost faith in btc 
I feel you! I sold some for $150 in 2015. Had a nice gain though but with todays prices it was a bad decision
Same for Ethereum which I cheaply bought at $0.94 and sold for $11 a year later when Buterin stated he sold most of his stake because he thought the price is too expensive. In hindsight, what a misjudgment on his part.