There is money to be made, but not if you only dabble. To make real money, you will need to put in daily hours for multiple months just to get profitable. Then you have two choices, slowly work up levels into higher money games, or you can learn multi tabling. Either (or both) will take months.
If you are able to devote a year to study and game time, any smart player should be able to earn a modest living. If you want to dabble, then play games you like in stakes you can afford. Either way, remember that there are players better than you and players worse. Finding which are which is the most valuable thing you can know.
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