Here's my 2 cents:
Friends. Yeah, well, let's see. I've had numerous..."friends," so please allow me to tell you of my experiences: nearly all of the people who hurt me the worst, screwed me over, manipulated me, took advantage of me, stole from me, laughed at me, used me, trash talked about me behind my back, they were these same so-called "friends." It's easy to see this in hindsight. I've had 1 good friend and his family my whole life. And now I'm even unsure about them. Maybe the problem is me. Fine. I accept it.
Girlfriends. Yeah. Um... when I was younger, (20s-30s) every guy I knew who had gotten married all had the same sob story to tell: "Don't do it!" "Biggest mistake I ever made, man, just stay single." "I love my kids but, if I had to do it all over again, I'd just stay single." "You're not married? Your smart..." "There's worse things in life than loneliness, and living with this wife of mine is one of them." etc. etc. so keep that in mind... of course, most married men have nothing nice to say about their wives, so maybe that's why the divorce rate is like flipping a coin.
There was this old saying: if it floats, flies, or f*cks, just rent it. So tinker around with those truthy tid-bits before you get too depressed...
I've had a few gfs in my life... never a wife... and it's great while it lasts for sure... but that's like rolling dice.
If I can give you one piece of advice: don't put too much pressure on yourself to have a gf. Don't really worry about it.
Just act as if you don't care... and don't be nice. That's the worst thing you can do. Nice guys always finish last.
(Take it from someone who tried that route for far too long...)
Anyway, I've been alone 90% of my life, and I'm double your age, and sometimes it sucks, but sometimes I'm glad. It just depends on how I look at it.
Oh, and I'd be remiss if I didn't give you the horror story:
Meet girl, hit it off, seems great... sex.jpg ... fast-forward... she has an STD.
That will change your whole perspective really quick.