No response in 24 hours

Hey F20 here, I usually don’t seek out advice but I’m struggling here. I’ve been talking to a guy I like for two days and the last message I sent he hasn’t seen it nor replied (on Instagram). What should I do to stop myself from feeling anxious or to understand the situation?

The last message I sent was just us talking about people we remembered from elementary school.

I just want to be seen romantically and feel that way too.

Help a girl out I’d really appreciate some advice 😭🥺