Maybe I'm projecting but you really need to let go of the idea of ever being a professional and stop thinking of your time spent on these games as an investment towards some sort of greater goal.

There is absolutely nothing wrong with choosing to spend your free time on whatever you want even if that means "getting better at x video game" but that is simply all it has to be. Having fun trying to be the best you can be.

I too was pretty fucking good at CS back in 1.5 when I was 13 but actually got cut off because I was using my dad's computer way too much (actually to be honest competitive worms 2 spawned my love for competitive gaming). This eventually continued with the discovery of dota, and then WoW was released, and then hon, and league, and dota2, and Ad infinitum.

You are probably just a competitive person by nature and naturally gifted at video games. I don't know about you but my love for competition started way before gaming with sports. I am naturally gifted at both but becoming a pro at any sport or e-sport is something most people have to fully commit to very early that requires absurd levels of both skill and dedication. If your end goal is to become a pro then I think you should keep going cold turkey until you realize that is never going to happen. You are 23 and the reality is you are more or less the age most professional gamers retire. You will have a lot more fun and care a lot about "sunk cost" when you realize that.

Spend your time however you want, if you feel like you are spending excessive time gaming and if it is interfering with progress in your personal development then spend less time gaming. That has to be your choice though and yours alone, at the end of the day you are going to do whatever YOU want to do.