Although trading is risky for every person, if you are an experienced trader then trading is still risky for you. But you must have sufficient skills while trading, moreover, trading is not profitable in all coins, I believe that only coins like Bitcoin and Ethereum are reliable. Moreover, you should never get excited and use your entire fund while trading, as this can lead to more losses. You should always adopt a strategy while trading, and you should have an idea about the market, if you can analyze it well, then trading will be very profitable for you. Moreover, nowadays, if you want, you can get knowledge and advice about trading from different places, you will get good ideas from successful traders.
Skills in trading is acquired throughout the years of being in the trading market. It is not an overnight skill where you will feel you know already the techniques to execute a trading. You may know the techniques but the actual utilization of it is quite the challenge. Also, with so many alts and coins that you need to keep up, you can only keep tabs on some of these projects. Better start with top one like BTC or ETH, so you have good grasp on how to trade these top currencies.