Advice for a noob...hm:
- Play it slowly, if you go running around like it was God of War you will die... A LOT.
- Don't just blindly attack enemies, try to lure them towards you and see what kind of attacks they have
- IMO, mobility is more useful than armor. I personally preffer to use an armor that lets me do a decent roll instead of one with higher defence that slows me down
- Don't be afraid to use a Wiki
- If you are truly stuck in a boss fight and you are ready to give up there is allways the option to summon 2-3 other people which is basically enabling "easy mode". Seriously, at least in DS1 every single boss turns into a joke if you summon a few people (well, as long as they are there to help and not troll around)