I don't want to marry my girlfriend of 1 year for convenience
I'm curious what's preventing you from wanting to marry your girlfriend?
She is pressuring me everyday.
Marriage is not to be rushed after just one year. Speak to her about being pressured, tell her it is actually making you not want to marry her at all.
I love her now and don't want to break her head or have a divorce.
It's fine if you're afraid to marry her, and I think that it is smart to not jump into something that you personally feel that you aren't ready for.