[JFB37]

I have a similar problem and have given it a lot of thought. (I'm a very consistent winner in B&M and just better than break even online.)

I have concluded the following: for some reason, I still think that most people online are not good players. Thus, (1) much too frequently I think that people are bluffing or overvaluing their hands and (2) I try too much "fancy" stuff online and try to "outplay" people in situations that are not appropriate.

I'm not sure why I think like this but I have recognized that I do and am working to correct it.