Running 2 businesses

Can I develop my photography business AND launch a new coaching business ? Or should I constraint and pick one ? My photography is the one bringing in cash (and fueling the coaching one, paying for my certification, etc) but I’m not as excited about it as I used to be.
Here is my unintentional model :
C : 2 businesses
T : you can’t do both and be succesful
E : confusion
A : not making offers, not taking responsibility
R : not making money in either one of my businesses

The result I want to create is : 2 thriving businesses (coaching & creating content)
C : 2 businesses
T : ?
E : excited and confident
A : making offers and creating value in both businesses
R : making money in both

Can you help me with the T line ? Thanks 🙂