Change can be a blessing in disguise. I've found you do a lot of growing in your 20's, mentally and emotionally. This may help that growth period for you. You'll figure out a lot about yourself when you challenge yourself the way you are, and I think that's great. You get more of a sense of what you want, and it helps you to know yourself better.

Now I'm rambling.....bottom line, you'll have fun, and it will be good for you. Enjoy it. I'm happy for you. :)