Future transfer student in need of guidance

Hi there! I just gradauated high school, and am currently attending Northern Virginia community college. I already know that I want to transfer to UMD CP after I graduate w/ a science AS, as UVA is rather far and I am not too much into GMU or other schools. I need some help to prepare to transfer, if that makes sense. First of all, please chance me for Fall 2019! As far as numbers go, I will have a college GPA of around 3.85-3.9 (I completed most of it in high school through dual enrollment, hence why I know), a SAT of around 1300, and a high school GPA of 4.07 (uw 3.7). During high school, I completed around 35-40 college credits through a combination of 6 APs and LOTS of dual enrollment. One of my dual enrollment classes was Independent Science Research with George Mason University, and I competed in the 2018 LCPS RSEF (nutrition focus). Aside from academics, I volunteered 200+ hours in the local hospital (high school and college hours), was a member of NHS, was VP for SNHS, was VP for environmental club, and currently am a member of Mu Alpha Theta (high school and college). I am a certified pharmacy technician, and work part time. If I am accepted, is it possible to double major as a transfer student? I am looking to major in both Dietetics and Physiology/Neurobiology (a biological science major) as I want to earn the RD credential and apply to med school. How is the courseload for double majoring, if allowed ? How would I go about departmental honors (I want to research nutrition)? Thanks!

I have taken BIO 101+102 (BSCI 170/171 +160/161), CHEM 111+1112 (CHEM 131+132), PHYS 201+202, BIO 150 (BSCI 223), MTH 263+264 (MATH 140+141), and DIT 121+122 (NFSC100) as far as major related classes go.