Are these mixed signals, or am I just being paranoid?

There's a girl in my computer science class who I like and think she may like me back. She's pretty willing to work with me, and I may have even seen her blushing on the side of her mask once. I recently asked her out, and she said it sounds fun but stopped short of outright confirming she's free on the day I suggested (she said she probably is, but just has to confirm). I know it may seem dumb to wonder, but I'm relatively new to getting dates in person and I've had some poor experiences under somewhat similar circumstances in the past. Even though I'm a bit worried, I don't show it around her. Is this worry too much, or are those really mixed signals?
Are these mixed signals, or am I just being paranoid?
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