This is true, no easy money in crypto world and this surely not a easy money scheme that can make us instant millionaire just a couple of months or even years passed. With bad decision of crypto investments it could lose lots of fortune and that's not healthy at all. Controlling emotions and always doing research will only be the way to negate all bad decisions and future investments to come.
Bad decisions taken in crypto investment can wash off all profit one has accumulated over a long period of time, hence its necessary to think / research properly before taking any investment action. For instance, when I started futures trading, I was comfortable with 2x 3x maximum. Later on greed set in, then I used 50x for a trade, I was so confident it will hit my sell target, but unfortunately the market surprised me and it went out, I got liquidated since my stop loss didn't hit. You mean to build a good strategy and stick with it to be successful in crypto, you must not invest in all trending coins, knowing when not to invest is very vital too.