I'm new here, but the episodes that I think are manic are usually signing up for things that are too big, like traithlons, etc. Other things are making impulsive career changes into fields I have no experience in, changing apartments, having arguments with people and really letting them escalate...when these things don't work out, I fall into depression and quit the jobs, regret the new apartments and apologize for hurting people during arguments, and just being really hateful toward myself.

Does that behavior classify as manic? I don't have "classic" symptoms.