In addition, even now, at $3200, the market cap of bitcoin is still only ~50 billion. If you believe it has a good shot of being a superior global reserve currency, then it is still cheap and you should be glad that you can buy it for $3200.
Most people I know who knew about it but did not buy constantly thought it is worth less than the current price, whether that price is $3000 or $30. So they never buy. Your job as an investor/speculator is to guess what something is worth, not just look at a chart going up and wish you got in at sometime in the past. In addition, you need to realise that the people who really do well in any bull market or bubble are people who did stupid or manic things and managed to catch the upside. Sensible people rarely make outlandish returns. If you are a very level-headed, sensible person, you will not make outlandish returns, especially short-term.