I presume the reason I'm wide awake at this time of night - despite going to bed at a good time utterly exhausted - is because of anticipation about the first of these 'group' sessions I'm due to attend.

Did I remember to confirm my attendance?
What will traffic be like getting there?
Will I be too tired to drive? (it's too far from public transport to try that)
Will I be able to get one of the very limited parking spaces?
Do I really want to meet new people and be sociable?
Will it be a stressful social event or quite relaxed and friendly?
Will it actually be of any value?

Well, will find out soon enough.