Welcome!
As best you can, help your son appreciate the fact that becoming an exceptional player is his passion and responsibility; not yours: that success in baseball or any other challenging endeavor worth pursuing is mostly about his commitment to consistent hard work.
The fact is that a small percentage of all players are truly gifted, but they set the standard on the field. The rest who make it to the top of the pyramid with them are "grinders" who willed themselves through hard work habits to a spot on the field with the gifted ones.
Meanwhile, do try as best you can to truly enjoy the journey and have fun; both of you!