In need of Love advice 😩

So I'm 20 years old and I have a sweet 2.5 year old. I'm currently with his father but not happy anymore. I started dating him when I was 15. He was 19. Young Love right? Well now that I'm older and more mature he just isn't the one for me. My best friend since the 6th grade was my high school sweetheart as well. We went separate roads because I thought I was cool with my older bf. He took forever to move on and has been with his girlfriend for a few years now.