Questions on Mining with a gtx 1070

[CrypticOG]

Hi im new to mining cryptocurrency and i am thinking about mining with nicehash i only have one computer that i play games on which has a gtx 1070 msi gaming X and i wanted to know at what temperature i should be mining at, i have msi afterburner and i can set the maximum temperature, i want my gpu to last me another 4 years should i mine in the first place?