Higher I think... for midairs.

Fear is a good thing, it keeps the edge on. Maybe not true fear like scared out of your wits but enough to keep your SA. I would also say this, you have to manage it, you have to deal with and be OK with the fact that this is a dangerous profession and things can get out of control very vast. And that every time you go up it just could be... ( statistically NIL of a chance ) that you may not come back... and you and your family MUST be okay with that fact. If you and your family or wife or GF or whomever wont or cant deal with the dangers involved it will lead to problems and or a fear that cant be overcome.

Fear may be to strong of a word... RESPECT what aviation is and its dangers and you will be fine.