Questions about vaccinations

I grew up in a conspiracy theorist home. I wasn't taken to a real doctor at all after I was seven, and right before high school I started having serious symptoms for which my parents finally let me go to a natural doctor. It didn't seem to help much other than providing a diagnosis of what was wrong with me. Now I'm out of their house and am seriously curious. I've always been told that vaccines as well as any allopathic medicine are poisonous and are the reason people get cancer. However, I've known several people who are fully vaccinated and perfectly healthy. I suppose I'm trying to find out if it's safe to go to a real doctor now or if I should continue living as normal? I know this may sound like a dumb question, but frankly I'm scared of making the wrong choice especially when so many people around me are telling me that modern medicine is dangerous.