Be a little aware before you are trapped! Marriage is a trap: you will be trapped by the woman and the woman will be trapped by you. It is a mutual trap. And then legally you are allowed to torture each other forever.
At the beginning of a marriage ask yourself whether this woman will be interesting to talk to from now until old age. Everything else in marriage is transitory: most of the time is spent in conversation.
To speak frankly, I am not in favour of long engagements. They give people the opportunity of finding out each other's character before marriage, which I think is never advisable.