Its like a Roller Coaster --

Lately with my Marine and I things have been like a roller coaster.
After he asked me to be his wife things got great amazing,
until I started thinking and getting stressed.
I thought long and hard, very long and hard about it.

I do love the him with everything I am.

I loved my life before I met him and even more after I met him.

It has helped me discover more about myself and the inner strength I have.

We have been together for 6 months and known each other about 8.

Although I have to be reasonable and logical about it.

I do not want to rush anything and not be able to fulfill what I was asked to do.

I am 17 and he is 21.
He should be in a serious relationship and considering settling down.

I should be preparing for life on my own and having some fun.

I am in high school still while he is in the Corps pursing his career already.

I am still planning my life and what I want to do and where I want to go.

I have not any life experience of my own, because I have always had my parents leading my way or giving me that push.

I have always had someone who cared and supported me in everything and wanted to be in my life as my boyfriend.

I have to learn to live on my own and handle things on my own.

I need to experience the world so I can be a better wife.

I want to be the wife I can be, I want to make him happy.

I don't want to fail at that job.

I do not feel ready to be engaged or married.
I think it is best for both of us that I called off the engagement.

I do love him, just everything is so hard right now.

I can't handle all the stress.

I want was it best for us and I know this is what is best for me.

Its killing him and I do feel bad for that cause he doesn't understand that I am not ready.

I just don't want to hurt him worse.

Am I in the wrong or am I being reasonable and logical?