What kind of bike do you use to commute to school?
It's just a regular bicycle nothing fancy...  a schwinn
The Pinnacle Limited Edition hybrid bike is highly regarded. It might be worth looking at if you're considering an upgrade.
I thought about getting a bike like cyclist use, but the wheels are so thin, I thought it would be too hard
Those are known as road bikes. If you're looking for an entry level ride, take a look at the Tommaso Imola or the Giant Contend 3. These are both affordable and have received rave reviews.
I do enjoy riding although I only use it for school at the moment. 
Nebraska is ranked at the bottom for bike-friendliness. Have you found it dangerous to ride on the roads?
Not really. My neighborhood has pretty nice roads.
That's a relief to hear! What are some of your favorite spots in Omaha?
The zoo and aquarium are a big attraction here.