Please help 😕

So my boyfriend and I have been together for 6 years. He was my first boyfriend and pretty much my first everything. We got together in 7th grade and now I'm a sophomore in college and he decided to stop going for right now so he's working .I have just been so confused lately that I'm just not as happy as I used to be. I constantly have thoughts about not fully living my life ( I don't mean being with other guys I'm talking about being by myself and figuring my life out) or if we were to get married I wouldn't be happy and it scares me. I feel so selfish to have these thoughts but I'm just so confused.