The video below should give you a good idea of how to use a rocket blower as well as how to wet clean your sensor. They also make pen-type devices to spot clean the sensor. Always use a blower before putting any type of cleaning device (sensor swab or pen) on your sensor. And even if you've used a blower and followed with a wet cleaning, if a spot is still there, use a blower before attempting to wet clean a 2nd time. The video tells about doing that.
Just so you know, images are upside down and flipped in the camera so when you look through the camera body opening, that spot will be on the lower right corner rather than on the upper left.
A loupe comes in handy. I did my first cleaning without one, but a loupe works much better than a flashlight. This is the loupe I use although there are several that work just as well.
The spot in your image looks like something is stuck to the sensor rather than just a piece of dust that can be blown off. In addition to the oil spot issue from my D600, I had this type of thing show up after changing lenses. It's like a dewy (sticky) substance, but it comes off with a wet cleaning.
https://www.amazon.com/Carson-Camer...531481842&sr=1-1&keywords=carson+sensor+loupe
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