Unasked for advice from a random internet stranger:
Maybe you need to shake things up a bit? Go to a bookstore and browse, have a coffee. I've met some nice people in bookstores.
Change your habits a bit. Take up something. Anything. Join an amateur dramatic society. Maybe your city or town doesn't have one, so, start one. Advertise online for amateur actors, you'll be swamped. Lots of people out there want to get out of the house and do something. You are not alone. It doesn't matter if you suck at acting, the joy is in doing it and having fun with others.
DO. SOMETHING. I've heard geocaching is fun. Offer to walk your neighbour's dog. When I get really down I take a good long walk. It's a slow walk, more of an amble really. It's good to just get out of the house and be quiet and watch the world happen around you. Airports are great for people watching. Protip right there. ; )
You must be excited about something. If you're excited, you'll find like minded souls out there. There are clubs for just about everything nowadays. And if there isn't a club, then bloody well start one. Bonus: You get to be Club President/Chairperson or whatever they call it. ; )
Stop wallowing and get out there. If you don't want to leave the house then that's fine. Host a Scrabble/Monopoly or whatever board game evening and get excited about making the snacks/food etc. Be a host. I'm sure there are forums online where you can do that kind of thing, and maybe you'll have a great time and make some new friends?
You have a mindset right now of letting Life happen to you. Maybe it's time to shuffle the cards a bit and take tomorrow on like that bitch owes you money.
Life is so short, don't waste it.