Am i masturabating too much?

i'm a 16 year old male. i masturabet on average (it varies from day to day) around 3 to 5 times a day. i have done this for around 3 years. The first will last around an hour ( this hour one has only beeing going on for a year) the otheres will be about 1 to mins. I'm a litttle overweight and experiance some pains in my testes and the occasional eye pain , i am also beggining to sewat more with masturbation. I have had mixed results trying to find information on this. I wish to cut down but i'm worried if say i go to once a day that it will effect me badly with cutting down so badly however i'm aslso worried if i keep up the amount of masturbating i'm doing i will develop health problems (main one is blindness, which i know is a myth but i'm unsure with chronic masturabtion) I am also wondering if the amount i'm doing is chronic ( i ume it is) Your adivice is most welcome