Allow me to suggest that, within the constraints your philosophical/religious views (depending on what they are), there may in fact <i>not be</i> any point to living. That's not true, but it may be the logical conclusion of the system you're laboring under. If so then it means you're finally being honest with yourself. That's a good thing. On the other hand, being depressed and suicidal very much isn't.

I know you <i>say</i> treatment isn't an option, but it really always is. And I doubt it would even end your career in the medical field. Doctors/nurses/pharmacists/EMTs have mental health issues too. I'm not an attorney, but disability law almost surely protects you from getting fired for seeking help.

My advice:

1. Seek help immediately.
2. Don't trust your perceptions of reality. Being clinically depressed is basically an altered state. Don't trust yourself to accurately assess reality.
3. Once you get the depression in hand, take some time to consider whether life really <i>does</i> have meaning. And, if so, what that might be.

Oh, also:

4. Don't ever ask the qhcf crowd for serious advice on anything. You might as well ask on /b/. Seek out meaningful friendships with people you respect and whose judgment you trust. Go to <i>those</i> people when you have this sort of question.