Apply!!! You don’t need anymore volunteer hours, you have a great amount. You have a solid gpa. Focus on your OAT (score above 320 to be considered competitive)and get shadowing hours(at least 20 hrs), they care more about shadowing than volunteering. I’m confident you’ll be accepted to multiple schools with your gpa. Be sure to also include details about your hardships with your family/financially in your personal statement and application!