Should We Get Married

Well, My Boyfriend and I Have been Together for 2yr, And we do really Love each other the thing is i am 19 and he is 23. We have been through every thing together , and we are considering getting married the thing is we are not yet finacialy stable yet but we are willing to become sucessful together and go through the rough times together. So should we go for it ? Or wait but the thing is i feel very long term relationships are such a waste of time we are already committed and we know everything about each other so i feel continuing a long term boyfriend girlfriend relationship is such a waste of time. Please comment...