I'm in college and I'm a 21M.

I met this girl on Saturday and spoke to her and got her number. I wasted no time on Sunday and asked her out to a date for Sunday evening but she had an assignment due so we mutually agreed to reschedule for Friday as this avoids academic clashes.

It's Monday now but I feel that if I remain quiet for the next 4 days she'll lose interest. Should I text her or call her? How do I prevent saying too much so much so that we have nothing to talk about during the date? I also have PTSD of being ghosted while texting so usually I avoid this but 4 days is a long time.

What should I do?