Every path we take will mean excluding an infinite amount of alternative paths and we have to come to terms with it. We can't have everything, we can't be good at everything and if we concentrate on one area, we can't concentrate on others.
This line very much reminded me of the movie: Everything, Everywhere, All At Once. There are so many alternate paths out there, it is no use worrying about the ones you did not take. Instead, make the most of the path you are currently on, and if it doesn't serve you -- find a new path!