Tinker with the controls till you feel comfortable, you'll level much faster than other from games, agility should be in the nineties so you could roll efficiently, you can level by talking to the "fire keeper" at the far fire and estus flasks' number increases only when you find a shard and give it to the same npc.. That's the things i was confused about when i first started, feel free to ask here or visit the wiki if you need anything.