No worries, I have a BSc in Natural Sciences with a 3.71 GPA based on my last 60 credits (had to do an open studies year after I graduated to boost my grades). I have been working in science education for the past year both teaching and tutoring. I do a bit of volunteering work and my major role is with a health charity with whom I've been volunteering with since I was in high school at both the local and national level, so I mostly talked about that in my LOI. Hope that helps, feel free to PM me if you have any more questions or want more details .