Nor surprising at all. It took me 9 months to get a 3 line code change into production once at Amazon. This was more than 20 years ago. It was not the only thing I was doing those 9 months though. But these periods were interspersed with nightmarish forced marches lasting six months or more. There was one instance when I spent 7 straight days in the office, 28 hours of which were in a continuous coding session. (VERY BAD IDEA btw) So, both things happen. It's corporate life. Just make sure you get enough of both kinds of experiences or you will either burn out or get bored and leave.