2013 Honda CRV Turning in

I am upside down in a car loan. My last car was a lease and was turned in, or so I thought, but was treated as a trade. Therefore, I am paying the remainder of the lease plus the car I am buying. Honda is getting their money twice due to selling the lease and I'm still paying for it! Anyway, it has been suggested to 'start over' by getting something with lower payments and do a voluntary turn in of the Honda. I know my credit will take a hit by doing this. In one way, I guess it's a little like declaring bankruptcy but just on the car. How wise/unwise is it to entertain this idea? I drive a lot; have had the car 1 yr and approx. 23000 miles. Payments are $750/mo and balance is close to $40k due to the lease/trade.

Thank you for your considerations.