Thanks for telling! I think you're reaching out because you know you need more meetings.
I've got lots of excuses/justifications for not going too, but that's all they are - excuses.
So - I'll play devil's advocate here and hope that you would do the same for me? if you start putting other things before your sobriety (marathon training - work) you will lose them. If you didn't have 6 months, I dare say you wouldn't be feeling well enough to train for such a physical challenge.
I go to 4-5 a week right now, and relapse prevention twice a week. I've relapsed twice in the last 6 years, and I'm not taking any more chances.
It doesn't mean you need to go every day, but I certainly don't think 1 meeting is enough for anybody - 20 years or 6 months.
I'm done!
Congrats on your sober time!