1) If you are wounded, your health bar will turn red. Lay down in water, and you will recover the quickest.
2) To get skills from a drawpoint, you click on the draw point, hold it down, and drag your mouse to the button that says "Draw". You will then get a random skill and amount of that skill.
3) To Heal yourself (After you've recovered from your wound) Press 2 To bring up your skills. If you keep pressing 2 you will cycle through all your skills. After a while, you will see "Cures X (insert Number here)" which are your cures. In F2, click on yourself to heal yourself.
4) If a prey keeps coming after you, Go to another dim, and try and find that prey again. Moving to another dim will respawn prey, and therefore give you a new chance at killing what you wanted to kill in the first place.