Yes! Just try your absolute best. I've read a lot on here that people can be accepted literally a couple weeks before school starts! While some schools may have filled all their seats on Dec 1st, many schools only filled some of their seats. You can be accepted at any time! Best of luck, don't lose hope!
For sure! It also depends heavily on the schools - I know last year the admissions advisor at my school told me they actually do a majority of their interviews post-Jan 1st.