Opinions esp. from women, please! Don't know if I'm gay/bi (curious)/straight

I really don't know what I am! Depending on my mood or what I've been doing (socialising etc) I can feel straight and bicurious, or transitioning lesbian. I think women are sexier and that sometimes I'm denying that I think so, and it feels like I'm celebrating it at times. With men, when I'm into them, it's very lusty and a bit too much. I'm very picky when it comes to guys but I feel like I could date any woman - it's like, with guys I have to make sure I'm really into one before I'd consider dating them, but I sometimes feel I could date any woman that I think is attractive and has a nice personality. Sometimes I think men are just so... blegh (sorry, guys!) and nowhere near as good-looking as women, other times I feel like women are prettier and more aesthetically pleasing but there's /something/ about men...
I watch porn sometimes and can enjoy lesbian, heterosexual and male gay porn. Sometimes I love watching the woman, other times I love watching the guys, and other times I like imagining I'm the woman in hetero porn; depending on how I'm feeling, the woman or the man can put me off. What worries me is that I can feel "trans" when I've an attraction to women (the inverted commas are because a month ago I convinced myself I was trans and realised this was a way of me getting used to, and accomadating, my anxiety and depression - I now identify as female and LOVE being one, but when I have these "trans" feelings I can find myself being uncomfortable as a woman ) I can also become a bit of a misandrist, like I'm forcing myself to say I'm exclusively gay even though I'm probably a 4 or something on the Kinsey scale... again, depends on my mood. Obsessing about my sexuality has made it hard for me to just get to know people, so I become more closed off which makes things more confusing... tis a two-way stream a bit. I also had a stressful, sexless heterosexual relationship a year ago to 8 months ago, and I can definitey say that put me off men for a bit, even though I could notice some of the guys in my classes at uni; and, I guess it's fair to say, I do have "daddy issues" (my parents split when I was a baby, so I see my dad on weekends but he has depression also and he always seemed to encourage me to be smart more than anything else... I used to get really upset whe he wouldn't give me hugs or wouldn't tell me he loved me), and recently I thought I had feelings for a male friend because I became really pissed off at him when he got a girlfriend after I turned him down just a month before.
So yeah, very confused! It's like I'm finding it hard to just accept that I find womrn attractive and obsess about it, or I'm a reluctant heterosexual who's obsessing about being gay or bi. Or I can't accept that I'm bi! Girls, any of you been through this? Can you relate? What are your thoughts (women and men)?
Sorry about the really long post... I have a tendency to do this.