Zldian212,
Michael was blunt (indeed uncharacteristically), but focused on core issues. I would like to supplement his focus.
The underlying ethics of living kidney & other solid organ donations has been somewhat problematic, because this is the only type of surgery in which the person undergoing the surgery (i.e., the person being harmed by the surgery, because all surgery harms that person) is not the person who receives the primary benefit. (Yes, we donors receive benefit, often immense benefit -- the satisfaction of trying to help another person -- but we are not the
primary beneficiary.) Thus, the possible harms to the potential donor must be minimal for the surgery to be ethical. The potential harms to you are not minimal at this time.
A key phrase is "at this time" -- and Michael says that, too. From your e-mail moniker, I guess you might have turned 51 recently. If a concern of yours is that you should donate now or else you will grow to old to donate, you should know that you have a few years to go yet!

(I donated when I was 67.) You do not mention whether other people are dependent on you, possible other responsibilities you have, etc. Granted, getting re-employed at that age (or any age) in this economy with good life & health insurance is not easy, but for all those reasons, the issues Michael outlined are basic priorities.
If you have an identified person who needs a kidney, you may want to donate immediately, irrespective of your age. But Michael's issues still are basic priorities at this time.
I/we all on LDO appreciate your desire and values. So does, or will, the potential recipient. I/we all truly wish you all the best as you deal with -- and solve -- these issues!
Bill