Best advice you’ve herd regarding a relationship

I feel like I need to hear a motherly sort of quote. I’ve been wishy washy with my boyfriend. I don’t know if I see him in my future. How do I really know he’s the “one”

My boyfriend is the first guy I’ve ever been with and first real relationship but for some reason I can’t help but think if I’m holding my self back by being in the relationship. A lot of the time I think our relationship is bland