@bighomer
pvp only works in the designated pvp areas (e.g. wilderness, duel arena, etc); but you also lose all your carried items save for 2-3 of them when you die normally
for the most part you can just make your gear again if you're high-levelled enough, or buy it from other players at the grand exchange (unless untradeable).
the economy has tanked since certain updates, so it shouldn't be
too expensive compared to 10 years ago.
just bank all your items you don't need atm bro, most people nowadays focus on skilling anyway