do 2 things:
1) study the link provided. that tells you where you'll need to put the icons for your project.
2) meanwhile, you need a larger icon (216px x 216px). ideally, you need 2 images of this size: 1 with just the lady's head and a transparent background, and the other with just the background. i've done that for you, but your icon is too small to stay sharp at 216px. see if you have a larger, sharper image and post it here.
that failing, the 3 images attached go in the mipmap folder as described in the link. if you follow the instructions in the link, you'll have an adaptive icon for the play store. if the result is acceptable, you're good to go. if you have a larger icon, i'll try with it. if nothing works, you've probably not followed the instructions. i did, and i was able to generate adaptive icons for 2 apps i have at the play store. erel's instructions were complete and accurate, as i recall. i had to download android studio to generate the images, but once that was done, i just followed the tutorial. worked the first time.