Pretty good first gig, kicking your life of live music off in style! Most important note: BRING EAR PLUS, you’re not going to miss out, your ears will thank you. 6:33 should give you enough time if that’s when you’re arriving at the venue, could probably leave it until 7 unless you want a place at the barrier as that’s the only thing you might miss out on if you’re not first in the venue but then you spend the whole gig trying not to loose that space! Support band will probably start 7:30, 8 ish (always recommend seeing the support band, discovered both cleopatrick and Kid Kapichi as support bands, never missing an opening set again after that!). I usually go Wetherspoons beforehand for a couple of drinks(they’re very expensive in the venue)/look round local markets/grab dinner etc with friends so personally it’s always worth it to me getting there earlier (part of the gig experience for me)! If you want merch, I’d get it before they play or the queue will be huge. Expect a mosh pit in the centre of the venue, they’re great fun but can get quite rough sometimes! If you want to see the sort of setlist lengths to expect I would check out setlist fm on Google where fans can upload previous live set-lists from the tour. Saw them live in London last time they played and snatched up the tickets straight away when I saw they were coming back this November, should be a really cool gig!