Can describe how hard is Physical Chemistry? Environmental Chemistry? Instrumental Analysis?

Question

Can describe how hard is Physical Chemistry? Environmental Chemistry? Instrumental Analysis?

Answer 1

Physical Chemistry is like beating your head against a wall for no reason.

Environmental Chemistry is like beating your head against a wall because you are convinced you can knock a hole in the wall and get into the bank vault to steal the gold.

Instrumental Analysis is like beating your head against a wall in very very slow motion so that the moments of agony are actually welcomed because they break up the soul-rending tedium of the slow motion.  

I realize that those are descriptions of what each are like.  But the relative difficulty of each is a subjective ranking.  By knowing what each is like, and knowing your personal tolerances for pain, futility, boredom, and utter lack of purpose in your life, you can get some indication of which you would find most difficult.