Pre-med or pre-dental ?

I'm a senior in high school and I can't choose I'm leaning towards dental school since I will for sure know what I wanna be(OMFS). But with pre med it's so vague to me and I don't know for sure but I think OMFS still have to take some type of medical school I think. But yeah and other thing COLLEGE !!! I was gonna go to HCC(Houston City College) for two years I wasn't gonna take any of my advanced classes there like O-chem or Microbiology you know the scary stuff I was gonna knock down my Bio 1-2 with lab and Chem 1-2 with lab and Pre-Cal all the pre reqs to take those advance classes. Then I was gonna transfer to UHD(University of Houston-Downtown) or TSU(Texas Southern University) to take my harder classes like the stuff they tell you had to take on the admission tab of the website for medical and dental school is that a good plan please help. Also I have a girlfriend(for two years yes, y'all will know how long I've been dating her for lol) I just don't know how hard its gonna be to balance all that. We was gonna move out after I graduate college but how did the people who's in the position I want to be in how do you guys handle that I have so many other questions like when you get there how is it do the professor teach like in high school or is it different but yeah and sorry I know this is all over the place.