I am also on the Physics Discussion Forum in several threads
These pages document myu journsey in understanding the Theory oif Relativity, and are older, many while I was still confused. I will be adding a page shortly that will show Full Enligtenment.
You can preview it as a work in progress at
Mathematical Physics, to which I am adding every day, so be sure and refresh your browser.
(These will also change if I get a chance to review them, but I am 81, and want to concentrate on the cudrrent working document unti I finsh the "To Do" section.
Note: many of the documents on the original page vanished; the latest Win10 update crashed my HD. These are mostly older, except for Fermat and Goldbach proofs. I will be restoring the rest as I get time (they are still on the server at GoDaddy.
I think the links are OK now, but if not drop me an email.