consistent with what? some universal anarchist dogma? the social presumption that one must have a job; live a particular way; be "successful"?
for me, the first thing i would question is the desire for consistency. what does it mean to be "consistent"? consistent with what? and why?
hypocrisy and contradictions (those words come to mind, they may not be precisely accurate) are an unfortunate reality for anyone that lives in this world - which is almost completely driven by economics and power struggles - and has radically different ideas about how they would like to live. such as anarchists. i personally seek to minimize those contradictions as much as possible, but i accept that i cannot avoid some of them.
if you choose a life that requires a substantial and reliable income, then you will almost certainly need to hold a job of some sort (unless born rich). for sure, some jobs will be much more abhorrent to you than others, and if you have anarchist ideas about life, that will clearly impact your desires, if not your choices (hopefully both).
my suggestion would always be to find/grow/learn/discover/create what are your desires and priorities, as well as (or as part of that) what it means to you to be an anarchist. of course some of that will come from interacting with others (human and otherwise), reading, observations, experiences, etc. but ultimately it has got to be yours: your ideas, your desires, your life. only then can you know what you consider to be anarchistic, what goes against your anarchistic desires, and what other considerations will factor into your choices in life.
as dot mentioned below, this democrapitalistic shithole (modern society) is antithetical to most/all anarchistic ideas and desires (at least those i choose to associate with). that fact needs to be accepted and digested thoroughly. then an approach to dealing with it can be derived.
one choice is to do your best to live outside/away from it, minimizing the contradictions it requires (from those that don't buy into it - you?) as well as your interactions with it. another choice is to live within it, making the best of what it has to offer while trying to create an anarchistic life within it (which may be limited to intellectual exercises, writings and discussions). there are many other choices as well.
"What kind of job can an anarchist have?"
an anarchist can have any job that anyone else can have - anarchists are people too. ;-) if it is approval from other anarchists you are asking about, that is a different question, and you will no doubt get many different answers. some jobs may be more tolerable than others (and that will vary by individual), and some will require more in the way of compromise from an anarchist perspective. only you can decide where a reasonable balance is for you.
but to be clear: NO job is an "anarchist" job, so you either have to accept that and take a job that you can tolerate, or create a life where a job is not necessary (difficult, but not impossible). that in itself (the latter) will likely bring up its own set of compromises. but again, it is - or ought to be, imo - all about your needs and desires.
"I understand that existing in such a manner contributes to capitalism but what other option do I have?"
if you are after that elusive "american dream" (which seems the case from a comment i saw), then probably none. if, on the other hand, you are open to exploring other ways of life (and there are many), you have virtually infinite options. to me, the key there is in figuring out what your priorities really are, based on your own needs and desires. and then setting about realizing them as best you can.
i guess that alludes to ba@'s question: what does "living better than most" mean?
damn, this funky dude can sure babble after a strong cup of coffee!
edit (just because this comment wasn't quite long enough), to more directly address the question:
being a teacher is a role that is well defined within a hierarchical structure. it also typically requires adherence to a curriculum that generally valorizes and perpetuates this entire system. on the other hand, it potentially provides some opportunity for exposing students to alternative ideas (with varying degrees of opposition from the hierarchy).
