Dear robertc
only by the knowledge of Materia medica no one can practice homepathy. in homeopathy the most complex thing is Dose and potencies. Did you read any article here in this forum - of David little other discussing on Potencies?

You wrote homeopathy is not no longer working. No, this is the end of your won practice - now you have to consult with a professional good homepath.

If u write the problems and the medicine then I will try to help you.
Regards
Dhiman