QUOTE(StickyPants @ Jul 4 2014, 23:57)

I was playing on Nintendo but lately people be killing me when i still have half health, so i had to drop it down to Hell. Dont know if this is just a natural thing from levelling up, or i need better equipment or something
I wouldn't be worried at your level. Good equipment would obviously help but it takes a long time (or lots of cred/hath) to get good stuff. As you get into higher levels you'll get access to and be able to improve several abilities to increase your survivability. For time efficiency, you might consider playing at even easier levels to speed things up (for longer arenas and grinds). The first few arenas, I'd suggest playing at the max level you're capable of for best chance of equip and other rewards.
I run RE on IWBTH and higher arenas on hard for efficiency. Course, my current equip set is a WIP so I'm a tad weak for where I should be.