I am a bit unsure what you are asking.
Self-sacrifice for the betterment of others is something that is worth exploring critically, and at extremes could include suicide, but choosing to go to college because of family pressure and social obligations does not equate with choosing to end one's own life.
Self-harming behavior is not always related to suicidal behavior, and is often a way of coping with overwhelming emotions, whereas suicide is more often about being completely out of options, and choosing to end everything.
I don't mean to imply judgment about any of these things, but your question with elaboration in bullet points doesn't tell me enough to be able to address this.
Side note: I work (not anarchy-land) in suicide prevention, so I perhaps approach issues around suicide differently than others here would. Despite my job, I absolutely believe in the autonomy of people to choose the course (and/or termination point) of their lives. I try to separate my "clinical" (I'm not actually a clinician, or a credentialed professional, or even diploma'd person) perspective from my anarchist perspective, but the latter definitely informs the former, and the immersion of the former affects how I move in the word overall, which is to say, you should totally either elaborate or be like, "fuck off, ingrate."