I mainly swing trade altcoins, first because I think bitcoin is not sustainable (POW, miners war, slow implementation/out-dated tech.), next because alts are going to provide a much higher ROI, if you know what you are doing.
This mean mainly:

- sticking only with good projects that are reflecting great FA, and an overall bullish future
- get a good entry: looking for long term supports, wickoff cycles, accumulation phases. And be patient
- doing my daily TA check, rebalance portfolio by buying the coins that had weak rally with those that are overbought
- keep in mind that after big rallies, there is bear time: always look for a possible top, and sell a big part of my portfolio when I get strong signs of reversal
- wait for a new entry

a total cycle can take 3-6 months
Confidence in the project, TA, risk & emotions management are the keys, along with knowledge and experience

I want to point out the most important points by order: knowledge, make you dare to make the experience, that will bring you confidence
Those three points bring synergy between each other