Feeling lost

Hi all. 30M here. Just started my first full-time job recently but I don't feel like I fit well in the culture here. Due to the job market being so bad now, it's difficult for me to find another job and go to another company.

Also, everyone around me is getting married and already has children which makes me feel even more left out since I am still single.

I find it hard to make friends, especially those with whom you can have a heart-to-heart talk.

Being 30 with no money, savings, "real" friends, and possibly a career that doesn't fit you is depressing.

Is there anyone who actually has the same situation as me or similar?

How should I deal with it other than "Just deal with it and suck it up"?