I received a BS in a life sciences degree from a fairly top state school in southern US back in 2019. Initially, I planned to go to med school, but my plans fell through and no longer wish to pursue it. I recently read up about consulting and am extremely interested in getting in. However, I am no longer at the university but working. How would I go about getting an interview at Deloitte or BCG? I have 0 business background on my belt. I do have plenty of research publications from my undergrad lab along with the traditional premed experiences like volunteering, teaching, etc.
Additionally, I am planning to return back to school this coming spring to pursue a post bacc in chemical engineering degree. If I go back to school, will consulting firms see me as "reset" to undergrad and not hold any prejudice against my older age (in this case, I will be applying when I'm 26 y/o for a business analyst position, as opposed to traditional undergrads applying when they are 21 y/o)?