I would say either the first or last option! I'll explain-
Explanation:
The first option states that you spend over 12 hours per week on it. Spending a lot of time on something can be a good thing! You may really enjoy doing whatever it is you are doing, so you send more time on it.
The last option states that you feel more energized when you are finished, meaning that you could also like doing what you are doing then. It might make you happy. Or more energized!
