How can i deal with people who are judgmental over the fact that it took me 11 years to graduate college?

Just know that they're stupid. Lots of people who have had easy lives tend to assume that those with harder lives are somehow to blame for the problems they can't control. It makes them feel like they deserve all the blessings they have but didn't work for. Tons of people are lucky enough to have parents who pay their whole way through college, and when these people are also morons, they look down their nose at anyone who wasn't so fortunate.