Savings advice

Hello, I'm currently 29 years old. I have $68,000 in my high yield savings account (4.5%) interest. $40,000 (4% interest) in student loans, and $17,000 (3.99% interest) on a car loan. Seeing if anyone has advice for me. Should I pay off my loans and become debt free or continue to make payments and earn the 4.5% interest? Also have been considering buying into the stock market with a few ETFs. Any advice is appreciated!