If you are going long, consider building an average position (for example via dollar cost averaging or value averaging). There is no better way to avoid making a poorly timed trade than buying incrementally instead of all at once and thereby buying an asset at its “average” price over time. If you don’t have a really solid grasp of technical indicators and the way the volatile crypto markets work, consider averaging out of positions as well. Averaging isn’t just financially conservative, it is important psychologically. Taking too big of a position at once can be emotionally difficult to deal with (and can thus lead to bad decision making) given the historic volatility of the cryptocurrency market.
No, the successful trader is not me. I’ve gotten lucky a few times and I’m still refining and trying out strategies; on the other hand, I’m part of communities of people who trade on a daily basis to grow their portfolios, and while some of the results can be attributed to luck, a majority of it is based on fundamentals, good habits, and experience.