Winning 50NL poker player (US) here. That's basically as good as you're gonna get without spending a ton of time. I've probably played somewhere around 3k hours of poker, with about 1k hours live and 2k online.
You will be a top 20% poker player if you can do two things right. 1) Play the hands you should preflop. This is the poker equivalent of learning blackjack strategy. "Starting hand ranges poker" will start you down that rabbit hole. 2) Figure out pot odds. If you have a straight draw, how often will it hit and is that worth calling a bet? That takes a bit of math that seems hard at first, but gets a lot easier as you start to cache common scenarios. Google "Pot odds poker" to go down that rabbit hole. Review interesting hands and share them online. twoplustwo is the "main" poker forum. Good luck!
You will be a top 20% poker player if you can do two things right. 1) Play the hands you should preflop. This is the poker equivalent of learning blackjack strategy. "Starting hand ranges poker" will start you down that rabbit hole. 2) Figure out pot odds. If you have a straight draw, how often will it hit and is that worth calling a bet? That takes a bit of math that seems hard at first, but gets a lot easier as you start to cache common scenarios. Google "Pot odds poker" to go down that rabbit hole. Review interesting hands and share them online. twoplustwo is the "main" poker forum. Good luck!