This comment tells us the sound recover settings are a little too aggressive. It needs to be backed off until the S sound does not lisp. It’s also a good idea to try and test only one ear at a time doing this. Sometimes it’s very hard to differentiate which ear is causing an issue.
I can see not needing earmolds. Your audiogram is borderline for molds with some people, not everyone. The local pros would probably say you do not need molds.
With your audiogram it’s hard for me to understand that you can listen to a radio and understand it without hearing aids.