One nerd to another, grok* this:
Wowie, that hobby thing is too much... for anybody. Why not investigate 1 per week and dive deeper into it? Did you have any particular things in mind? Knitting?
I took up teaching myself philosophy several years ago. Ditto to meditation, although I've since been to a lot of group meditation, and I tend to prefer the "group energy" that comes with deep meditation among a good group of people.
Instead of a "hobby" per se, you might consider trying to read 1 book (per week? whatever your book-consumption-rate works out to... mine's like 1 every 3 days) concerning the meditation goal. Or at least go surfing and pull some lit off the web to read in your spare time.
What's wrong that you feel ill? If I may be so nosy?
1. Write down your specific goals when you've decided on them. My profession teaches FEAST format, but that's just one way to write 'em, and it's rather clinical.
F= function, "In order to..." is somewhat standard.
E= expectation, "I will"
A= action, "do x"
S= specifics "y"
T= time allotted to reach goal "within z (time period)"
Ex: In order to improve my diet, I will spend 15 minutes cooking a healthy breakfast for myself each morning for the next month.
Just pick a goal writing method that works for you and stick with it until it quits working.
2. Post your goals on your bathroom mirror so that you have to look at them every single day when you are getting ready for work.
3. Tell someone in person, face to face, about your goal and ask them to check in with you. Your gf is a likely helper.
4. Evaluate your goal at regular intervals and at the end of the allotted time frame. Did you meet the goal? If yes, yay! If not, what went wrong, specifically? Not enough free time? Not properly prepped (wanted to cook, but forgot to hit the store... consistantly
)... you get the idea.
5. Write new goals so that you are consistantly meeting a low-to-moderate challenge in which you are moderately to highly successful. (People who continually write goals which are too hard to meet usually feel guilty and quit the whole goal thing.)
*those who have not been exposed to grokking should consult the Heinlein text of Geek Canon.