I no longer use keyboard/mouse, but I'm pretty sure you can turn your camera view without using your mouse (like the arrow keys I think, or at least it can be set up to do so). Some players I've seen are using keyboard for most things, and only use mouse to target specific targets. Others weave mouse usage in between their actions. Archer solo quests at lower levels do usually require you to move around a lot to reduce the damage you take, it just takes practice to move around, jump, and attack all at once.