Two weeks is awesome!!!!!!
I understand the roller coaster that you are on. IMHO you should just tell your family that you are struggling. At the very least call a sponsor or someone else, you don't have to do this alone. I didn't want to tell anybody that I was suffering when I started out, for the reason that you stated. They all thought that I was doing so good (and you are) and I felt like they would be disappointed in me. My sponsor told me that it was my pride that kept me from telling them about it and that they and I would benefit from it if I let them know my feelings. I can't say that this is the right thing for eveyone but it worked for me.
My prayers go out to you,
Scott