I've tried counseling in the past and I thought it helped. Just to be able to get things off your chest and be able to verbalize all your thoughts to someone who's job it is to sit there and listen is a huge step in tackling pretty much any emotional issue you've been facing. This is especially true if you don't have many people that you feel close enough to or comfortable sharing your thoughts and feelings with.
I know we're here for your problems related to leaving religion, but to have some face to face interaction would probably be better. I don't know if you're looking into getting help from a phd'd psychologist or psychiatrist or if you're going in for more public resource counseling (something provided through school or work), but I know that the field of psychology is not populated by many close-minded religious fundamentalists so as long as they don't advertise themselves as being religious, they probably aren't or are fine with you getting your critical thoughts regarding religion out.
If you are in the US (I think this organization is only in the US), this website would be a good place to start:
https://www.seculartherapy.org