Anxiety or something

I use to be a super social and active person. I like being around people, and going out, and when I do, I feel great. But building up to such interactions make me nervious for some reason, like I want to put myself out there and I don't at the same time. I'm also finding I have a lot of nervousness and anxiousness when I know there's a conflict or potential confruntation with another person. Finally, I have issues following through with things, saying I'll do something and don't, both socially and otherwise. I have a need to make those I'm close to happy all the time, which is probably where a lot of this stems from, but it's very bothersome to me. People see me as outgoing, energetic, friendly etc but there's so much anxiety and nervousness that people don't see.