I feel like my reasons for being a vegetarian are pretty selfish, but I still want to do this.
What makes the reasons selfish?
I just use it to make me feel better about myself
Most people I know do something to make them feel better about themselves. You chose a pretty good and healthy one so I see nothing wrong with it.
Maybe. I just feel like people judge me for it but I'm glad there are people like you who don't.
No problem, I am here for you. Your lifestyle choices should not be influenced by anyone else, because your morals and what you want to do should be most important to yourself. You aren't harming anything, so keep on saving animals by being vegetarian!