Point in relationships at this age?

I know i am only young, but i recently have just broken up with my boyfriend for many reasons, the main reason is that i had thought about if i could see me with him, not exactly forever but just like if i could see it being more. Sometimes just being in a relationship means thinking about these things and taking risks. What's the point in being in a relationship if you don't see it going anywhere? I mean, sometimes it's good just for the moment and enjoy the ride and go with the flow as people say, but what's the point in that when all your going to do is end up in heartache whether your dumping the person or on the end of the receiving line and being dumped, either way it's not a nice experience!
 Maybe i just wasn't happy and that's why i was thinking it.

I once fell in love but got my heart my broken, i know it seems daft but i feel a bit damaged since then. I don't feel as emotional as i used to be. I feel sometimes, a bit...numb.

Also, i think with what people associate relationships with, e.g. romance, love, passion, sex etc i feel isn't anything unless it's with the right person; because then it has meaning.

Im going to leave relationships altogether and just be strong and happy within myself and focus on my life e.g. family, friends, career etc.

I believe that when love comes, it will come freely and unexpectedly.
Sometimes it's the best way to live!