you actually have achived beginners luck, when many traders start, they do not earn anything at all. some even make huge losses. keep trying and seek as much information as possible from established gurus.
You can apply begineers luck but only in starting there is no chance you can always make profit just by trading any random coin , trading has many aspects involved like it's future , which all exchanges it will get listed , how it is helping the community and what features can beneficiary in the coming future. Making loss is a part of trading but it doesn't mean you sell it for a loss you instead hold it and wait if you bought it during any pump or dump then you might have to sell it in a loss but if you bought in a bearish market there is nothing really there for you to worry about.
There is just a little amount of time beginners luck can be of help. A time will come when trading goes wrong and that is when you see a newbie trader panic not knowing what to do and when to do it until they have lost a huge percentage of their funds.
Some coins are shitty and trading them will only make you lose more than you can gain and some newbies are always doing the FOMO thing, looking for where the price is rising, so they can quickly get in and get some profit, without plans or analysis, how won't trading go bad for them ?