Try expatriating. All the normal issues of time, where to meet people, etc, PLUS cultural differences, language barriers, possibly racism, etc.
It really helps the loneliness. What also really helps the loneliness is that in many foreign countries, the taxes on liquor are not as oppressive as in the US (I assume you're in the US and that is your home country). Thus it is cheaper to drink yourself into oblivion.
That is one reason why there is such a high failure rate for expats in biz.
Or, you can quit feeling sorry for yourself, realize that you can do something about it, go out and meet people, since you have two advantages: you speak the same language and you already know the culture.