So with your trading strategy with 20k you made only 15k. If you stepped in before the pump of 2013 at $100 per btc and emptied your bag at let`s say $800 you would make 140k (20x8-20). The lesson is that with btc it is always better to hold and not to trade with outdated fundamentals.
Nope..I came piling in at $700.....with Bitcoin Kool-Aid foaming out of my mouth.....I was very lucky I never got my arse handed to me.....back then I never even knew what a MACD was, what I did have, was a tremendous streak of beginner's luck, buying in, selling, higher, buying back in lower, in-out, in-out........sold at top, bought back on first dip down $580........
.......sold again at top, had a plan to buy back at $400-$500 range, but people on here kept telling me I was delusional, and I listened to them, so moved my buy in tranches up to $550-$650 range, and in the morning when I awoke to see Bitcoin had hit $380, learned how inexperienced and bad a trader I actually was, as I nursed my 35 BTC position, struggling around sub $500, on the 5 minute charts. I saw a decesending triangle break down...so I sold! Went out for a walk, by the time I came back, Bitcoin was up at $550.......been pretty much all down hill from there, as I scrapped around with TA that I didn't really understand, getting run over way more often than I would win......last straw came for me on the Nov 2015, when I sold too early, FOMO bought back in upper $300s, with double my original stake, then despair sold it all down at $300...
....after that, I decided to learn to take courses and learn to trade.