Hello Dani and thanks for your post.
Great comments from all of the other Realtors below, but I would suggest changing the order just a bit. First, I'd find a good Realtor to work with.
When I bought my first home when I was in my 20s, like you, I did not know where to start. So I called a friend who worked for a local real estate office, and she referred me to one of the sales agents that she trusted. The agent met me and walked me through the entire process of buying a home. He "schooled" me on the basics of mortgages, helped me define where I wanted to live and the size of the home, and let me ask him every "dumb" question I could think of regarding buying a home. In the end, he made me feel so knowledgeable and "at ease" with the process that I felt I could make the decisions I needed to buy a home. Then he gave me the name of three mortgage brokers and two banks that worked especially well with new home buyers, so I could get prequalified.
Today, as an agent myself, I look back to my very first experience as a home buyer, and I work with new buyers in the same way that this one agent worked with me. Sometimes the buyers decide to wait or tell me--now that they know all that is involved--that they're not ready mentally, financially or emotionally to make such a huge commitment. That's okay because my job is to primarily to serve and educate the consumer, and if they happen to buy or sell, I hope they'll remember my value and choose to work with me. In fact, all of us here on Trulia serve to educate the public, and that is also why I spend so much time here writing such long-winded, involved answers ! LOL!
So, my suggestion, Dani, is to find a great Realtor, like I did, who will provide you with the basic education and knowledge you need to determine if you are ready to buy and home, and then will give you the resources (both with vendors and contacts) and skills to help you get your new dream home!
Grace Morioka, SRES
Area Pro Realty