Master Of One
Jack of all trades, master of none.
That is how the old saw goes.
Being a dilettante I could find that discouraging. - The concept implies the power of single minded purpose.
I have found for myself, and life is a personal journey, that it is more fun to dedicate the majority of my efforts in one direction while touching on new things constantly.
Dreampower speaks of goals, but goals are signposts on the road we are traveling, not the destination. - The consummate artist always sees need for further improvement.
One of the keys to improvement is a broader world view. The more insulated we are from diverse input, the less we will change. - Change can be a very good thing, leading to improvement.
Feel free to dabble and move on in those areas not connected with your primary journey; you may discover a shortcut or a new destination.
It is all right to be a jack of all trades.
But still seek to be the Master Of One.