2. (I don't know if this is applicable or not but) drinking will not help.
3. More people than you can possibly imagine have been where you are. (The noisy "everything is fine" group has a large subset of liars and people suffering -- like you -- are silent. Skewed sample set).
4. It will not always be thus. The tide goes out, the tide comes in. Wait for the tide to come in. But in the meantime start talking to someone.