I am the polar opposite of this and I am going rather well with it. Which means: I am happy with what I am doing, I am happy with the money it produces, I am happy with the way customers interact with me.
And quite frankly it would very likely bore me to focus one one thing only. I am not on this planet to get bored with my life or hunt for some mythical sunlit uplands by betting all my time and energy onto one thing, unable to keep a healthy distance riding it into a ditch because I want it to suceed too much. I want the things I create to be objectively good. For this I have to be able to keep a distance to them. Making them the sole center of my life would prevent me from that.
Apart from that I am easily the most productive person in my social environment, parts of which are of the "only focusing on one thing"-crowd. However I don't think my approach works for everyone. There are types who need these context switches and there are types who need that focus.
And quite frankly it would very likely bore me to focus one one thing only. I am not on this planet to get bored with my life or hunt for some mythical sunlit uplands by betting all my time and energy onto one thing, unable to keep a healthy distance riding it into a ditch because I want it to suceed too much. I want the things I create to be objectively good. For this I have to be able to keep a distance to them. Making them the sole center of my life would prevent me from that.
Apart from that I am easily the most productive person in my social environment, parts of which are of the "only focusing on one thing"-crowd. However I don't think my approach works for everyone. There are types who need these context switches and there are types who need that focus.