considered myself straight most of my life
I don't have advice but I relate to you here. I'm also a man and have only come to terms with my bisexuality in the last 3 years or so, but I'm probably older than you. I wonder what the future will hold for me. I'm married so that complicates things, and most of my friends think of me as straight, along with all of my family. I wouldn't mind them knowing at this point but I just haven't had a reason to tell them. It would cause some of them stress and I'd just rather not if I don't have to.
longing for someone to hold me
Here I relate to the specifics of your need/desire but not that desire exactly. I do like being held. To my wife's credit I feel mostly satisfied there. I feel a strong need to be desired though, suddenly along with all of this, and I feel dissatisfied there. I want to be wanted badly (sexually). An experience with a gay man that never turned sexual at all is at the start of that, for me, just a year or so ago.
I agree with others here that we are all pretty unique, and I extend that to everyone, everywhere. Good for you for working to understand yourself better.
Thank you. I needed to hear that.