Yikes! I made a backwards skin!

I recently made a new skin for myself. When I went into minecraft I realised he was backwards. The face was on backwards. Everything that was supposed to go on the front was on the back. I don’t really know what to do to fix it. Could anyone help?

I don’t know anything about tech, but I think I know what to do. Do you have any really complex looking stuff on the back of your skin? I think you should take a screenshot or take a picture of the front of the skin and the back of the skin. Try your best to switch it and while making it don’t erase anything. If your face is back words, look at your picture and then use the tool that takes a color from your skin and click on any color on your face that happens to be on the back and use that color on the real front to make your face correctly. If anyone knows how to switch it that would be better because this can take a long time. I hope this helps!