Dear candidate, according to me you should wait for JEE Mains. It may happen that with your JEE score you may be getting colleges better than VIT. Nothing is impossible. Why not to wait and give it a try? VIT allows admission of students after mains also. I got mails from VIT after I started my college in 2019. So, wait till JEE mains result then decide what to do.

Hope, it helps!