I'm a little younger than you (43), but can very much relate. My current position is similar and trying to do all 3 of those things (and do them well) over the past couple of years has lead me to the verge of burnout. The paradox is that I still love what do, and I really enjoy it when I have a chance to focus on one aspect for longer than 15 minutes at a time.

But the demand to constantly be hyper-productive at all three of those things simultaneously just because I happen to have the skillset(s) means I have a hard time caring about any of them.