I believe OSU will provide me with a great academic and social environment to ensure success in the working worl d.
This sentence follows your opening line, an assertion that their school provides a special opportunity for you. Instead of this sentence, tell an example that proves that the school actually does provide a special educational opportunity that is especially useful for you. This will require that you observe something about the school that makes it particularly appealing to you -- because of your unique interests.
It is not good to start that sentence with "I believe" because you already asserted something, and now you need to confidently back it up. What is the perfect example of why this school is perfect for you as an aspiring pharmacologist? You should make that point at the start, in the second sentence, so that it drives the whole essay.