SUBREDDIT: r/AskReddit
TITLE: I'm 6 months into my first job after college. It's not bad, and the pay is decent, but it's not what I want to do for the rest of my life. How long should I stay before looking for something else?
POST: Some background info:

I don't dislike the job, and it pays well. Although the job can get lonely/boring at times due to being the only person under 30 on my team. I'm also currently working as a programmer on a team of non-technical staff, so there's lots times that I've serving more as tech-support than working on an actual project. They appreciate the job I do, and I certainly wouldn't leave suddenly as it would make a lot of people's lives difficult, but I feel like I should eventually try and move towards the area I want to work for in the future (Information Security). 

I keep telling myself I should stay around a while and gain some work experience (I am learning, but as the only techie on my team, it's all self-taught / googling).

Has anyone else been in the same situation? Is there a certain time period you should stick around a new job to avoid bad references/hurt feelings? (1 year, 2 years?)
TL;DR: 
I'm content with my job, but I know I need to make a change eventually. How soon should I do it?