When you are young, you have the whole future to start all over again, but when you are getting old everything is done and there no time to start again. I can bring happines to anybody because there nobody out there waiting for me, and I can't give something that i don't have
"One mans trash is another mans gold."
Why on earth would you choose to give up on yourself or your children? The simple fact that your alive is enough to be grateful for. Take a step outside of yourself and try to put yourself in a third world country. Or in a place that is at war either with its self of with another. Try to count the blessings of being able to speak, or use your hands, or walk, or see etc and then look at those who don't have these blessings.
The fact that you have children is something to be proud of.
Life of course is not how we ever envision it. Which is basically why its life. We all have mountains to climb, rivers to cross and valleys to walk through, in doing so, with each step we over come that which is keeping us down and morph into that which we will become.
Did you come out to your wife? If so then pat yourself on the back for being able to be completely honest with her for the first time in your relationship. To do that is a great accomplishment. Many ppl have gone through their entire lives never letting the world know that part of them, which is just that, a part of something greater.
As one said earlier, you can't go looking for something and hope to find it, when you don't even know who or where you yourself are. I tried to do the same in the beginning but only found emptiness. It's only when I decided to worry about more important things such as work and education etc, that the thing I wanted before, actually knocked at my door.
Before you can find that which you are looking for, you need to figure out and find who you are. And most of all you need to be comfortable with yourself and love yourself as you are, and with being alone, before you can ever make another happy with who you are. It's not another individual that completes us, or makes us feel as though we are whole, being with another person, and recieving their love and happiness is only one of the great kick backs outta life.
In my opinion, at this time in your life, I believe that you may actually do more harm than good if you find another. Mostly because you don't even know who you are or what your capable of, how can you possibly let someone else know something you do not. Take this time as being your second chance. Take this time to do all those things you never had a chance to do.
Good luck in your quest.