I thought of a few more ways for you to make friends. I've moved al bit and here are some other ideas. Join a book club. VOLUNTEER!!!! What are you interested in? you can volunteer at homeless shelters, tutor someone, Museums often have volunteers , a library volunteer, volunteer fireman . Until you get a job it passes the time and looks great on any resume.
Perhaps you can look at jobs that are social, like working in a grocery store. .....jurs
As a JW kid I was cut off from the world and was never properly socialized. Having no social skills, I had no clue about how to make a friend on my own.
To this day I am very shy and it sometimes feels like torture just to make small talk with strangers, but I make myself do it anyway, because being isolated feels much worse. Believe me, you aren't alone in having those feelings. I can't add any more to the great advice you've already been given here, 'cept to say, hang on, ok? cos you will make it out to the other side.
Gil - I definitely think you need to join a group - Gamblers Annoymous sounds right up your ally. Along with dealing with your addiction, you may find others right in your boat.....and real life humans to talk with. There's gotta be a few in Las Vegas, and it doesn't cost any money.
Also, finding a job, any job, in an establishment NOT directed towards gambling would be useful too. I know the job markets tight right now.....but working in "grocery stores" or other sorts of establishments isn't the worst thing that can happen to a person.
My e-mails always open as well....Its not the "same", but its best in a pinch. An e-mail can be as warm and comforting as a real phone call.