I don't really have to convince you or anyone else, but whatever. I've got time, so I guess I might as well give a little more detail.
What fits for 5:
-Basic desire - I've always been very cerebral. There was a time when I wanted to be the smartest (especially in math), but that didn't work for long...so I created a niche for myself that hadn't been taken. I became the language girl, studying German, Spanish, French, and Japanese. I also find the idea of being an expert at something very appealing.
-Basic fear - I find that a lot of what I do is motivated by the fear of pain, which I mistook as 9's basic desire for peace of mind. But when I think about what it is that causes me pain, it's mostly related to competence. I put a lot of energy into trying to avoid making mistakes that make me feel like an idiot. I also can't stand feeling pathetic and helpless.
-Minimizing - I could be perfectly content to live a small room with nothing but a bed and a computer (with internet). Also, I view others as intrusions on my time and space, and I avoid people as much as possible to avoid obligations and commitment.
-Analytical and overthink everything
-Disintegration to 7 - When I moved to a new home and then started college, I decided that I would try to engage in more activities, and do more (because I never do anything :P). I went a concert for the first time. I tried to make friends with my roommate and impulsively decided to go to the mall with her and a group of her friends who I didn't even know. I develop a struggle between needing to do something, anything, and being worried that it will cause me pain or that it won't satisfy me.
About the only thing I can find about type 5 that doesn't fit me is that 5's can sometimes be antagonistic, trying to debunk others' beliefs. While I may not agree with peoples' beliefs, I don't take pleasure in trying to prove them wrong. I don't enjoy most arguments (unless they're purely intellectual debates and the purpose is to learn and enhance understanding...I don't like it when it gets like a competition). I do enjoy holding philosophical "debates" in my head, though.
-Basic desire - Well, I'm still trying to figure out what this is, to be honest. "Peace of mind" is pretty vague, since it means something different to different people. Being free of pain could work, I guess. But I think for 9's it usually includes having everyone be happy and get along, which I don't relate to. I generally wouldn't even notice.
Basic fear- Uh, no. I have never been afraid of loss or separation, as far as I'm aware.
-Positive outlook - Not exactly...I'm probably closer to being a pessimist than an optimist, though I'm really more of a realist. I've never really been as happy and cheerful as other people seem to be, but I try not to be negative and complain about things. And I agree with the motto: "hope for the best but expect the worst". I protect myself from disappointment by having no expectations in the first place.
Lacking sense of identity
Don't want to face unpleasant realities
-Accepting - I try to maintain positive opinions of everyone. There's not a single person I dislike. I may get angry at people at times, but I can never stay angry for long.