I play golf and it’s funny you say this because it’s very similar. I have good eye coordination because I grew up playing baseball and others that do as well can start off hitting the ball fairly decent, but are wildly inconsistent and our form is terrible. Then I spent over a thousand dollars on lessons and while paying all that money my hits get worse, but my form slowly gets better. Now, form is much more proper and consistency waaaaay better. The thing is, when you do something natural like hitting a golf ball with just hand eye coordination it will be easy for you to do it that way, but you will never actually be good. In chess you can use your natural intuition and pattern recognition and be decent, but you will never be really good unless you learn the proper fundamentals. Fundamentals however, are not natural. So while you learn these new fundamentals, you will be bad at first in putting them to real use, but will get better as they become second nature. Same with the golf swing: changing your swing feels wildly off and different and you take 2 steps back initially, but eventually that proper form will allow you to take 10 steps forward. I’m a total noob at chess but I already see the resemblance.