I have recently got a texture for the left bicep but want to put it on the right bicep but its not fiting I've rotated it I even resized it any ideas?

I am not sure but work with a template. you will need to "flip" some specific areas vertically or horizontally.

Edit: found templates I think you should flip all image horizontally but I'm not sure. The gap between bodypart and joint changes. Or not?
Check this;

That actually helped thanks

Ur welcome I suggest closing thread. Have a nice day!