I think one needs to mature in life before taking on trading... If you do take up trading without understanding your emotions, feelings, reactions, beliefs, etc... you will just be taken for a ride. No 'one person' will ever take you for a ride in the markets, it's just a collective ride. You most likely will get bruised and battered - and once you're bruised you'll most definitely 'blame' trading. Call it bad, etc. Anything that you 'desire' can set you back by a lot in life.
I love engaging in a conversation/debate about the good/bad things of trading... and it can go on longer than any trend, etc.
One thing you need to understand if you want to stay in the markets: You cannot 'judge' what you do as 'bad'... This leads to a cognitive dissonance... If you believe something is 'bad' how can you bring yourself to do it?