If you can see a therapist, you might want to ask her for help in identifying and expressing emotions. It is often really hard for people who have depression to figure out how and what they are feeling, and how to let those around them understand this. Often there's a lot of just OUCH that is hard to sort out and differentiate, and that is hard to deal with. A lot of folks SI to try to decharge the mess of unidentifyable, painful emotion. There are better ways to do it and a good T should be able to help you. Be gentle to yourself. You mom didn't ask for this, but neither did you. Keep posting, OK?
PS: I'm sorry if I sound condescending, but I actually have had to learn how to be over obvious when I communicate because otherwise people in the country I now live in all too eagerly "misinterpret me". It might be therapeutic, it might even be comunication, but it's not meant to be "therapeutic communication"