Go to the Up

I am so boring.
Every week is just like the last, but the worst part is I don't know how to change it. I should get out and do something, but what to do? I just don't have any experience in things like this and don't have a clue on how to get started. Anyone up for some activity?
Today is D&D game night so at least I will be getting together with other people, but I am not sure if that is going to cure my melancholy or just amplify it. Sometimes I get depressed when I go to the mall or overhear others talking about thier significant others. I just feel so alone sometimes, especially after my older brother moved out of the house and my younger sister got married and moved out. So our house feel more empty now, kinda like me.