That does not sound like mania to me. If you have a carefully considered plan of action, it sounds like normal human behavior. That being said, I have periods of time (like right now actually) where I am dying to completely change my career, but for no good reason other than one day I decided "my heart is not in it" (I just posted about this last night). Wanting more opportunities for yourself sounds completely reasonable. Maybe I am biased because I want change myself, but I say start coming up with realistic options for yourself and go see what the world has to offer.