Is mining viable for me?

Heya!

i'm just researching if i can use my gpu to mine.

Note: i have free power/internet in my area, so i won't have to waste a single cent on that!

i have a casual gaming pc; r9 290x as a gpu. I work on my desktop for about 10hrs a day (study) and i think i might as well mine during that time.

i'm just trying to do this for fun, not looking for serious income. Maybe i could use the $$ for upgrades on my pc

how much eth/day could i make? ty!