More I read, more I see that trading in a long term is not profitable. So, I wonder are there any profitable traders that make money on the market constantly and sustain decent lifestyle?
Yea, their are so many traders out their that lives a decent lifestyle with the profit made from trading, but for you to get to that level, their is a lot of work you must have put in your development in becoming a profitable trader, just be rest assured that it's not a day job, but relying only on trading for survival as a trader isn't ideal, because it puts you under unnecessary pressure, and and trading under pressure is not good at all.
Is this something doable? Is there any strategies to become a trader that makes this amount of money?
Yes, it's actually doable, and their are so many types of trading strategies out there, just that your level of knowledge and skills in the craft will determine if it's achievable or not.