I owned my first home at 21..so my advice is Go for it! You need a downpayment, good credit, and reliable and steady income in order to qualify for a loan. It's an excellent move, regardless of the current Real Estate Market.
The first thing to do is to speak with you bank to get a loan Prequalification done. Then you can interview Realtors. Some Realtors love working with buyers, so try to find one that specializes in first time buyers. They will help you every step of the way to homeownership.
I write a blog for first time homebuyers, link below. It can answer a lot of your questions. Also have a facebook page where you can post a question and I would be happy to help. http://www.facebook.com/#!/pages/Home-Buying-Tips-Discussion