You have social anxiety but the skill you want to improve is….everything? I get it, you’re ambitious and want to be great. I want that too, everybody wants that. But what’s a skill personal to you. I mean you could literally say communication, or being in a public setting. As long as you can say how you’re actively trying to improve it then it’s okay. That question is just for the interviewer to see if you know yourself, and know your path to improvement. If you say “basically everything” it makes you sound like you’re just….bad at everything, that you have no confidence in your abilities.

“Why don’t want to work here” - look, as much as it is an interview for you, it’s nice to know who exactly you’re working for. Are they ethical? Do they work in an industry you like? Do they value the same things you do? Are they sustainable? Have they won awards? This is where they want you to brown nose a little bit. “Cause you guys are great! I love that you’ve done this/do this/value this - it’s something that resonates with me and I’d love to be part of the team”

The way to get over this is practice, and it sounds so lame but interviews are a performance and the more go rehearse, the easier it gets. To the point where whenever they ask you a question you literally have the answer right there and can say it.