Hi Christina,
Welcome to the fun and addictive hobby of carving.
What type of carving do you want to do? There are many types of carving, relief, in-the-round, chip carving, caricatures, birds and animals, you namne it and somebody probably carves it.
The type of carving you choose to do will determine what tools and supplies you need to get started. I would suggest starting by checking your local, school, or college library for carving books. They will give you an idea of what you might want to try first and then you can get what you need to start your first carving.
I started with a 3 blade pocketknife and a copy of Tangerman's 'Whittling and Woodcarving'. I first learned to make balls-in-cages, chains, and 'whimseys' which taught me a lot about working with the grain and keeping my tools sharp.
My next step was to wood spirit faces and I bought a 'german bench knife', a 1/8' v tool, and a 3/8' #6 gouge.
I have since bought and made more knives and tools but still find that I use these three the most.
Good luck and good whittlin, Cliff