Today I realised I'm socially awkward 😀

How do u guys do it? How do you talk to people so easy. Whenever I do, I never know what to say, or I stutter, then I get nervous and just stand still. It's so awkward and annoying. It wasn't that bad before but now I find it hard to socialise even with my family. I wasn't like this before tho. In fact I was the most talkative person in my family. Now I can't make direct eye contact. How do I overcome this?