The thrash/trad vest I have I made myself (from someone else's pattern though), diy is always good. Plus you can customise it, I did some flannel lining in places. Thrift or upcycle works just as well.
Bonus points for hand painted patches too, that's beyond my ability but it's def a thing, I just messed around with different stitching, a lot are hand sewn with stuff that's like thick dental floss becauae I like the look, looks a lot better on my black/death vest though, studs/spikes aren't my preference so I don't have those.
There's a bunch of different looks, different groups have their own style, depends on what you want to do, could go as far as some crust/patch pants or stick with the classic blue denim and band shirt look, shit I've seen flannel or military jackets turned into battle vests, just make it your own. I've always worn work boots to shows, that's just what I have.
TL:DR, to me, diy is the point and historically a big part of the culture, do what you think looks cool.
It's a learning experience. Is your nozzle torqued to spec? Only time I've seen something like this is when the heatbreak/nozzle weren't set correctly on a v6 hotend, and even then it just oozed down, didn't consume the entire heatsink. I kept that in my box of learning lol, swapped everything to hotends that are secured so they don't spin freely after that, was petg so it degraded in the heat and was such a pain in the ass to remove from set screws, was ok writing it off.
Bed adhesion is often caused by surface cleanliness in my experience, some setting will influence it but you're going to chase problems if your surface has residual oils, some surfaces are more sensitive to it but even the oils in your fingerprints can cause a loss of adhesion. Light dish soap and water is the general recommendation for a degreaser but be aware that this will damage some surfaces, I've got some that explicitly want only 99% IPA and another that only wants a clean microfibre cloth.
Drafts can cause an issue too, seen some abs fail becauae I didn't have the enclosure latched properly and the doors worked their way open with vibrations from printing, I keep mine in my garage and live in Canada, enclosures are a must for me.