Being a vegetarian isn't as difficult as some may paint it to be. There are an exceptional amount of food options even without meat. There are also multiple variations, so keep in mind that your "menu" is still diverse! In addition, the health benefits of cutting meat out of a diet are exceptional. Explore some of the links above to learn more about diversifying your diet.
Believe it or not, most people who make the switch to a vegetarian diet find that they actually discover MORE food they may never have tried before. When meat options are unavailable, it forces you to get creative and adventurous. That is always a good thing, especially when vegetables are involved!
Dining out is always tricky, because there are exponentially fewer menu options that exclude meat. The best advice is to look up the menu ahead of time, to see what's available. If it doesn't look like there are many non-meat options, looking up the menu ahead of time affords you the ability to eat at home before going out, that way you won't starve. Also: don't be afraid to ask! Wait staff are accustomed to these questions and know which menu options are available for people with dietary restrictions.