I Want To Keep On Walking

I am a 53 year ols=d man who became a right below the knee amputee in 2008.  Since then I have worked hard to control my weight and diabetes succesfully.
I work full time and so does my wife however as millions of other Americans, we live paycheck to paycheck and anything outside of that regime is really a struggle.
I am in need of a new prosthetic leg in order to continue working and living as pain free as possible. The actual prosthetic I have is too big and causing a lot of pain and at this time we can not cover this expense ourselves and I dont want to lose my job.
Please help me continue on this amazing journey called life.
Thank you very much in advance
Mike