I can't possibly fix your entire life for you. Nobody can even begin to do that. The best thing for you to do is find another hobby, and focus on improving yourself.
Go get some exercise, even if there is snow on the ground. Dress warmly, and go on some snowy hikes. Also consider lifting some weights, and just generally doing a full-body workout. Consider reexamining your diet as well, should you need to. Cut out processed sugar, junk food, and processed foods. Learn to cook things you wouldn't ordinary cook. Cooking can be therapeutic, and lead your tastebuds on a path of adventure.
Already you could have two new hobbies: exercise and nutrition.
Pile on a third hobby, such as art, model building, or even photography. Something to keep your mind busy and also act as a creative outlet. If you want more passive entertainment, pick up video games.
Next seek out other people. Your town might have social events you're entirely unaware of. Use google to find if there are any social groups in your area, and with caution, contact them. People won't come to you, so you need to go to them.
I know it's easier said than done, but find a job immediately. Make it any job at all, even if it's working fast food or at a convenience store. Getting out of the house with purpose might do you some good, and give you a chance to make workplace friends. Pick up various jobs, even things you think you'll be poor at, so you can accumulate life experience. You'll learn more about yourself and pick up new skills.
There's much you can do with yourself, and you're only limited by your own laziness or creativity. I can't really give you any advice beyond what I've already typed.