OSU has some departmental scholarships you could potentially apply for once you're a student here, but so far as I know those tend to be smaller and fairly competitive. The large merit scholarships many students receive are awarded to incoming freshmen only.
I don't know much about OSU's exercise science major, but if you are looking at having to take out private loans to fund your education at an out of state school, I suggest you take a serious look at how much money you can afford to borrow. Out of state tuition at OSU is fairly expensive, and a quick googling suggests that exercise science majors earn starting salaries between 18k-30k typically.
If you use a student loan payment calculator, you can see that borrowing just 15k per year at 6.8% interest for your remaining 3 years would result in 45k owed, and monthly payments of around $518 for the next ten years. That would be very difficult to afford on top of other typical living expenses even if you were earning 30k a year. A 30k annual salary in Columbus would only equal a monthly post-tax take-home pay of approximately $1,970. A 20k annual salary would result in a monthly post-tax take-home of only $1,380.
In short, I urge you to reconsider attending an out of state school in order to major in something unlikely to lead to a high paying job, especially if you are looking at having to take out tens of thousands of dollars in student loans. FinAid | Calculators | Loan Calculator PaycheckCity.com | Paycheck Calculator Result