Each of those would be quite a long explanation if you've never worked with Photoshop. It'd be good to know what you've tried already, and if you are facing any particular challenges in the process.
The spiky edge needs to either be drawn manually or done using a shape like this one, that you can download and install to use in the program.
The glossy effect is a combination of drop shadow, inner shadow and bevel & emboss. You can follow a good tutorial here.
What you can do too is grab one of the many free PSD badges around the internet (this Illustrator file is very similar to what you are describing), open it in Photoshop and see how it's constructed, what effects are being applied, etc.