Why am I never someone people want to be around?

I use to be the exact same way down to every detail I had a very nice gf I was very observant to I read there body language and how other people reacted to it. I don't have this problem since about a month ago I figured it out I said to myself, we only have one life and never know when were going to die so I'm going to live it up like they were my last days. Since then I've been going out everyday drinking with friends parties or just hanging out and then you meet more people doing that and then they contact you to hangout and then you meet more people and its just a cycle it takes a while though but don't be shy!! Hope this helps.