Dude you are just outsmarting yourself.  I can think of maybe one person who has done better by dumping on highs and scooping on lows (TheKoziTwo) without resorting to pump and dump scamming.  Everyone else who gets rich on this stuff without being evil does it by picking a technically and economically sound coin with good community, and accumulating on lows.  I confess that I have done well on market making, but that is just nickel and dime stuff compared to the absurd returns on my buy-and-hold cold storage position.  I gave up on timing the market for the most part quite a while ago, and I very certainly do not regret that capitulation.  

Maybe someday, when xmr is within an order of magnitude of it's long-term fundamental (Fisher's law) value, and the jumps are less biased to the upside, there will be more opportunity to extract technical alpha, but we are not even close to that level yet.  Just get as much as you can reliably hold for the long term.  Don't load yourself up with regrets by trying to time events which are so difficult to model.  You just have to be in when the magic happens, over and over again.  Any time spent out just makes it more certain that you will miss out on the upward leaps.