When you own your own home, of course, you either have to do the repair and maintenance yourself or pay someone to do it out of your own pocket. In addition, you aren't as mobile. If you own a home, depending on the real estate market, it can take quite awhile to sell your home. If you buy when real estate market prices are high, your home price can actually decrease from your purchase price, or depreciate. This can make it very difficult or almost impossible to sell your house, especially if you bought it recently with very little down payment.
Home ownership is a bigger commitment than renting in many ways.
It's a commitment financially because you have a 30-year mortgage to pay. It's a commitment geographically to both a city or town and the particular neighborhood you choose. It's a big decision that you shouldn't take lightly. Make sure it's the right one for you at this point in your life. You'll find some more information to consider there.