To many, the first year is the best of the married life. But for others, the first 1 - 2 years could be tough. I've seen many marriages around me which didn't survive the first few years. Once you get over the first few years, you may get into a routine, settled down, and marriage can be worthwhile.
Personally, my hardest years were years 6 & 7 when my wife and I had lot of dispute on how to raise our only child. Divorce was a real option. Once past that, we have been happily married. We are now on our 19th year.
Hang in there and try to make the best out of it.