Hi guys, I really need some advice!!

So I've got tickets for three gigs but I'm so confused!!
BRISTOL- Is there a separate diamond circle, then a barrier, then golden circle, then a barrier, then general standing??? Is that how it will work?? OR do diamond and golden ticket holders stand in the same pit?? as there will be no catwalk stage right??

HYDE PARK - Is there DEFINITELY a golden circle?? Can you obtain these by having an online only backstage membership?? Is it even worth buying golden circle tickets for this event as I already have general standing one's???

Please if someone could advise it would be great!!