But then pyro spells doesn't have great range like sorcerer's, so you are pretty much quite near the person you are trying to kill, which mean he can easily melee you.

Yeah, so have to time the spell properly otherwise you might just get a blade in your face while trying to cast your spell.

Actually the game is not that difficult once you get use to it, it's not a game that you can just rush it and expect to survive. Strategies play an important role in this game and knowing how enemies attack and avoid them will make you play time much more enjoyable.

I don't really die a lot now compare to when I started and usually if I die is because of my own mistake or I am meet a new enemies that I am not familiar with.