Nowadays crypto trading is very popular, that's why I have some interest in it. is it all about HOLD or SELL?
For starting the trading business you need to have some trading capital and apart from it, you need to have some sound knowledge about trading. But trading is not about Hold and Sell only. You need to buy the coins at the Minimal price and then sell at the Maximum value. There are different trading styles and different trading timeframe which you need to look after according to your trading mindset and approach. Make sure that you do enough practise before going for live trading.
That's good explanation and I think this is enough list that we should follow for the purpose of crypto trading. Also one thing you should remember quite strongly is that you should not be emotional trader at all. Those who do it emotional way will never get the sweet pie and will always loose the money. Better keep it straight and hit the right coins always by studying them from the market buzz. Mix more to learn from the project announcement threads as it gives hell lot of info about when and how it will spike.