What do I do?

I have a Kia niro I love my car but it’s way too small!!! I was a first time buyer I got a 10% interest rate and want to get a bigger car like a mini van what can I do? Should I just wait out my loan term? And then get the bigger car later? My car payment is 523 but I pay 650$ every month since I got it so I can pay it off sooner. What should I do? Should I save up and try to refinance? Or save up and trade in? What can I do? My income should also be going up within the next 5 months because I will be getting a second job