I'm not familiar with the Nikon Coolpix so I can't recommend anything with that camera specifically but there are things to watch out for when trying to improve sharpness. Camera shake. Be careful to squeeze the shutter release and not push it. If you are using the zoom feature then you have to be twice as careful. Also, be careful if you have low light because you will have a slow shutter speed.

The big issue with this photo is that your point and shoot may not be able to make anything sharper than this.

Did you break the lens or just get it wet? Was it salt water? You may be able to have it cleaned. Will your parents household insurance cover the replacement costs? I hope you haven't tossed it. You might just have to wait until it dries out.

If you dropped the lens what was on the camera? You must have a kit lens or something with it or why would you have the lens off the camera?