Common App to Questbridge ranked schools.

I ranked 8 colleges through questbridge, I was a finalist but was not matched.

I did not know that questbridge essays would be used as a common app, so I did not put that much effort into them knowing that my chances of becoming a finalist were pretty high. However, I did not get matched likely because of these essays, I was wondering if I could send a common app essay to these colleges for regular decision instead of my questbridge essays again?

I also got deferred from UPenn early decision with these questbridge essays.

I got a 1520 on the SAT with an 800(chem) 780(math II) and 740(USH) on subject tests and have a great gpa with good extracurriculars.

My supplementary essays were good, but I feel like my questbridge essays are a big weakness for me.

Sat 1560, math II 800 act35
3 foreign languages
QB finalist
National Merit Semi psat 1500/1520
Upenn ed Rejected