Mining with only 1 GPU I have a GTX Ttan and plan on getting a GTX 1060. I want to only mine with the 1060. How would I do that. Im using sgminer v5.3.1
Mining almost any crypto-currency, including Ethereum, with just one GPU is not recommended if you are wanting to actually make profit. This segment of miners are viewed as enthusiast with the goal of just contributing to the security of the network. If you do not have these goals, it is advised to avoid mining at large.

Mining requires large amounts of electricity, GPUS, and multiple rigs (aka mining farms). Most residential home-miners will generate some amounts but will never generate enough to even break even, resulting in a negative ROI (return on investment).