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.
Yes, Bitcoin is best to trade because there is no scam in that token and it's demand is too high and millions of people want to be trader and they are doing small or large trade . People are also doing trade on different tokens which could be risky because market is controlled by Bitcoin and Bitcoin is top most valuable cryptocurrency and no token could be like BTC . We saw many copy tokens and we also saw recently Bitcoinbit which was copy of Bitcoin but after few months team fled and investors and traders are in loss.They got good amount as many people trusted on that token and it's picture was also copied but we saw scam and traders should keep one thing in mind, other coins could be risky.