NP or MD?

I'm in a dilemma. I love medicine and its been my passion since I was young I have always thought of being a doctor. When I graduated high school I was madly in love and settled going to nursing school since we decided to stay in the area, well the love fell apart and now I am an RN with associate degree from community college working at my BSN while working full time. Once complete with my BSN my next route was NP but recently I had meet up with a friend of my uncle who is just finishing his residency as a trauma surgeon and while we were talking about medicine and where I wanted to go with my future, he said that I should go to medical school. That really re-sparked my interest so I started doing research. After looking into programs across the country for med school, I don't think I have what they are looking for. The most classes that I have taken is 3 online courses while working full time and some of the programs do not consider that a qualified candidate even though I have an overall GPA of 3.8. Currently I need to continue working and will not be done with my BSN for 4 semesters so I do have time. I was considering taking 2 full semesters of classes once done with my BSN with a focus on biology courses to show that I can handle the work load and still get the grades. But I fear that even that will not be enough and it will be a waste of my time.

I know that med school is very competitive, I dont think that my background will help me. But I have the grades and I test very well, I think I would do great on the MCAT, but I fear that because I didn't go to a 4 year college right away and take full semester classes that I put myself at a big disadvantage.

Does anyone have any thoughts? Maybe someone knows someone who took a similar route as myself and they are making it? I guess I'm looking for a little inspiration and that it can be done.