Ya know, I too felt very mentally awkward for a time after I quit. I have had my moments where I thought I was going mad. Its all still questionable
The thing is, is that I had to level off and readjust to my "new" life. Also, there just may be something that has to be addressed within you now that you no longer drink. And that is okay. It is perfectly acceptable to not be okay right now. We are programmed or told that we have to be strong yada yada.... Its BS. There is a reason why you are processing and it is of great importance to let it all out. You are doing great. Oh, and your family is saying that they are proud of you because they are proud of you. Believe it. You should be proud too.