Thinking About Success as a Failure

I have failed at everything, and now that I am fifty-five, I have to ask, how many times do I have to fail before I succeed?
To many, and even to myself, my life is halfway over. I am now on the slide downward to death, and I haven't accomplished any life goal.
I wanted to fall in love with a beautiful woman. I wanted to be world-famous for some ability I have, and I wanted to be admired for that ability.
Am I asking for too much?
I want to be liked for something. I want to accomplish something and leave behind that accomplishment as a gift to the world. I don't think my life goals are much different than anyone else's. Many people want to have children and leave behind that legacy. Others want to start a business. While some want to break long-standing records.
All of those life goals are wonderful, but I think my problem in accomplishing my life goals is I don't know what talents I have. I have spent my life searching. Going from one endeavor to another, attempting this then that, undertaking one task only to pursue another. I have had countless jobs and hobbies from a busboy to a projectionist, from a painter to a writer, from a runner to a porn model. And yet, I have succeeded at nothing.
I envy those who knew what they wanted to do early in life. Start that business in college. Break that world record in high school. Have that first child at eighteen.
It is no surprise I am still single at fifty-five. No woman wants to marry a man who doesn't know who he is.
Without knowing my talents, without knowing what I do well, my life hasn't started. I am still a child discovering the world around me and what it has to offer.
But I am also afraid I will die having yet to figure myself out.
Who the fuck am I?
I started writing this blog a few weeks ago, and yet, no one has read it.
I post videos of myself masturbating, but I do not feel fulfilled.
I went skydiving and NO! That wasn't for me.
I spent sixteen years as a prisoner, and I am currently a registered sex offender, but I hope I am remembered for more than being a criminal.
I have failed at everything, but I thought maybe I could be remembered simply as a man who tried, simply as a person who put his best foot forward, simply as a human being, but that would mean someone would have to know my story, that would mean I would have to succeed at making a friend.