Did I make the right decision ?

[Baked]

Ok so I had this girlfriend, she was awesome. Really cute and really nice, she was awesome to have but we were two to total opposite people.

We had fun while it lasts but I just couldn't get rid of the doubt inside of me. I just knew it that she wasn't right for me, I think she thought otherwise.
We are only 16 so it's not like we were going to stay together forever.

We liked each other but I thought a stoner that chills with friends all the time,
isn't right for a sports girl that likes going to school and hanging with her friends there.

I broke up with her and I thought it was the right decision, she was a little confused for a while but I explained to her why.
Her friends hated me for a while but I think that she told them what I told her, they respected me for my decision.

So I ask you Supportforums, did I make the right decision ?