I'm not in a helping field. Actually, quite the opposite. I work somewhere in beauty/fashion where competition is everything. I've always enjoyed being of use to people... which is more task oriented, but working in this field has pushed me further into wanting to help them too. So there is someone struggling because of the environment, I'll give them counsel (if they ask) and do some kind of service that helps to maneuver them in the right direction.
The thing I dislike most about this is being sucked into drama or becoming someone's crutch, so I do keep a distance and discriminate quite a bit, avoiding the overtaxed feeling.
I did work as an assistant teacher years ago, though. I was so impatient and didn't (still don't) believe in coddling people - even children - back then. The only thing that has changed now is my perspective. Less impatience and a little more understanding.
^That wasn't a career choice, by the way, just a long-running summer gig. Although at some point I did want to study psychology in order to become a therapist for criminally-minded children. I nixed that idea once I realize that I don't like kids that much and I don't have the emotional fortitude I thought was needed to handle a job like that.
Oh and I know that this type of job is draining for even the most demonstrative of emoters, so don't feel disappointed with yourself on that.