So, I wonder are there any profitable traders that make money on the market constantly and sustain decent lifestyle?
What is a decent lifestyle for you may not be what another sees as a decent lifestyle. They may see it as opulence or average. Words are relative in meaning. As for me, I do make something by the side from trading. It may not be much (as I need more) but it's something to go by.
I am not looking for big money, let's say 2k or 3k per month would be enough. Is this something doable?
$2k or $3k monthly profit will depend on one's trading capital. It shouldn't have to do with bearing unnecessary risk and exposure. Anyone with less than $20k trading capital aiming for such will not be heeding their money management guideline. For me, that will be too much unnecessary risk. Someone with above that capital, let's say $50k+, can even easily make that within a few days.