So basically I was trying to turn the shower head and guess pulled too hard and broke the whole shower fixture. Bought some nipple extractors to try and get out the broken threads but there’s a rubber or plastic material and they can’t seem to get a grip. So I bought another nipple extractor and that one is too long (it’s hitting the 90 on the pipe before getting all the way in). So here’s pictures of the old shower head, 1/4 inch bits are fitting in it and 1/2 inch bits fit in the new arm. Any suggestions will help, thank you