I'm a Nihilist, and though usually people correlate nihilism with unhappiness and a dismal view of life, It's not necessarily like that.
I haven't really developed a philosophy on life, or purpose, or anything else like that, because the way I see it, trying to do so is ultimately a fools errand. The universe is in such a large scope that trying to nail something down as significant is really just a matter of what one values emotionally and nothing more.
That said, the fact that I acknowledge this is enough to put me above it, which doesn't mean I have no goals or aspirations, its just that I take into account that everything, even life itself, is extremely shallow, and thus, my goals are rather shallow. I exist ultimately to die, and experience the in-between time. I want to live my life in a manner that satisfies me, and as vague as that sounds, that's about as detailed as I can get, because I don't know, or care to find what I want. I can only define what I don't want, and that is for my life to be a rut. No matter how good it pays, I don't want to have a "go to work at 'x' time, do the same shit I did yesterday, come home at 'y' time." career. I don't want to have a family whose faces I will see every single day of my life until I die. The reason I don't ever want to settle down with something that many people aspire to is because stability leads to familiarity, and familiarity leads to boredom. If I become bored with my life, that is, to me, the only way to truly live my life wrong.