No real advice, just wanted to say that my DD started nursery at just before 6 months. It doesn't seem normal for babies to start that early (IME) but in my case I worked for an American company and I was already stretching my boss' patience by taking 6 months maternity leave. (He made me redundant 4 months later, but that's another story!)
Anyway, I was desperately worried about DD as she was still BF only (refusing bottle), no routine whatsoever, and couldn't even sit up unaided when she started. Was also a bit
when her teenage key worker asked if she would have Weetabix for breakfast as we had only just started weaning and I was going with a gluten-free diet to 12 months due to coeliac disease in the family.
I spent the first week going in to nursery every day at lunch time to BF DD. It soon became clear that she was having a great time and not missing me in the slightest. I was worried about the older kids climbing all over her, but she solved that one by learning how to sit up unaided two days in. The nursery had a battery-powered baby swing and the older kids loved pushing her in that. After a while, she even began to take milk from a bottle and settle into a routine of sorts.
As for what they got up to, every day had a set "timetable" with different boxes of toys - about one per hour I suppose. So it would be musical instruments one hour, plastic food the next, etc etc, with the kids exploring it with their hands and mouths.
And I had NEVER thought to do painting with DD before she started there....was so proud when she brought her first painting home in the first week!
IME, starting nursery so early has made DD much more sociable and much less clingy to me. She has been through clingy phases from time to time, but never more than a week here or there and much much less than other kids I've seen start later on, once they're aware that Mummy's gone.
Which doesn't mean she doesn't love me - the look on her face when I pick her up is always the highlight of my day (now met by a shriek of "Mummy!").
Good luck. It is hard at first, but you and your baby will be fine. x