Choose the correct preposition

1. Keep your mind
   [in|on]getting better, and don't worry about anything else.
2. There's no need to feel sorry
   [of|for]Ian; he's a brave man, who manages to overcome any challenge.
3. Despite his fear
   [of|for]spiders, Tom managed to pick the animal up and put it in the garden.
4. One of the many difficulties
   [of|for]her job is having to deal with many people at the same time.
5. They forgot to take a map which resulted
   [in|of]them losing their way.