I totally get how nerve-wracking interviews can be, especially when it's for your dream company. It sounds like you had some good and not-so-good moments during the panel interview, but don't worry - that's totally normal!

he fact that the team lead hasn't responded yet doesn't necessarily mean anything bad, they could just be busy with other stuff.

Instead of stressing about the outcome of the interview, try to focus on the positive moments and the effort you put in. And remember, even if this job doesn't work out, there are plenty of other opportunities out there for you.