Although you may not completely escape loss as an altcoin trader or crypto trader in general , but if you study the market well and get familiar with FA and TA you can trade with profits. One more thing you have to avoid greed, take your profit while you can.
Greediness will make you avoid the profit. If you wait further more for a greater profit because you are greedy, this will not allow you to take the profit while you can.
Avoiding the greediness and setting an accepted profit shall be enough as a trader.