I'm writing a very short (one sentence) description that is meant to be a tagline. I'm looking for a single adjective to describe an individual who has personal problems (or, rather, negative traits that the individual is attempting to improve on) that he/she is battling internally:

* Impatience
* Cynicism
* Lack of enthusiasm

A crude example (not the actual description) to illustrate what I am working with is as follows:

> 
> The story of four [insert word] friends who are trying to find their place in the world.
> 
> 
> 

As of now, the only word I can think of is "troubled", however I would like to know what other words are available for me to use.