I have some experience trading and for me, the best results in crypto have come with a medium and long term trading strategy and swing trading on the side. By medium I mean about 1 trade per month. I also do swing trading in alts (2-3 trades per week) but with a smaller percentage of the portfolio. I also tried margin trading and I advise anyone doing it to learn technical analysis and use MT4 for BTC-e, like someone here suggested earlier. However if you are new I don't recommend any intra-day margin trading at all, because a 3.5% dip in BTC like yesterday, could touch your stop losses (if you even have a stop loss, in which case it could be worse depending on your leverage). Surely, if that can be bad for bitcoin, you can imagine how bad it can be in alts, where price can easily drop 10% - 20% in a day.

I avoid margin trading in my strategy. I find trading crypto more similar to traditional Wall Street than Forex, so picking alts is a big part of my strategy. Part of picking an alt has to do with technical analysis in my case, so basically I'm looking for bullish alts with low potential of a bubble. I do not trade based on fundamental analysis, because unless it's something like the halving or anything obvious, I assume that any inside information is not going to be known, so it is imperative to use technical analysis and I think anyone trading crypto should at least learn the basics (even if they don't do margin trading).

For the most part I am managing the bad trades and cutting loses, because in my case the profitable trades usually need longer periods of time before I take profits. So for my swinging strategy, I get out of around 3 unprofitable trades and 1 profitable trade. This overall has proven profitable for me because I pick low risk high reward trades. I am thinking about trying a high risk, low reward type strategy (which I don't recommend for new people, unfortunately they tend to like these ones a lot) as soon as I get more time, and maybe I'll provide more details.