i been there too saying stuff like that about not wanting to graduate to have kids or get married most of it was out of anger or the tought about not being able to do what ever you want..
now im 21 graduated about to be a father and talking about marriage those were things i never tought i'd be doing would i change them? no, not for anything in the world im looking forward to being able to hold my baby girl in 4 months and being resposible for my own little family and eventualy a husband to my girlfriend so we can live our life how we want..
just enjoy you life when ever you ready things will just fall into place