What Causes Foreskin Burning After Pee?

Hi I m 16 and my foreskin is burning after I pee. The foreskin could have some tears from maybe it being to tight while masturbting. Are there any ways to help this heal any faster and to also prevent the burning next time? I also have another question how should I help adjust my foreskin to coming back? Sometimes it can come back while others it s too tight. I m confused by that. Thank you for your time