You will be happy again, it will take time. Be gentle with yourself, you are doing great.
I agree with the others, stay out of bars, aside from the alcohol they are cesspools of disease. Anytime I get a cold or flu, I can trace it to eating out. Eat at home, carry your lunch. Don't eat in restaurants. (Ok so maybe I am a bit of a germ freak, I will eat lunch while mucking a stall, but would not eat in 99% of other people's homes, let alone a restaurant)