Yeah, no, sorry. Ditch it.
Your f/2.8 has screwed with you here. The nose is sharp, the eyebrows are almost sharp, but the eyes are not. A narrower aperture would have saved you.
What the heck, @Cleyvosier???? You're posting on POTN now? I'm trying and trying and TRYING to help you here.
I assume you're calibrating the Dell now? Here are the instructions to use: https://www.damiensymonds.net/cal_CMD_pc.html
One of the Crop Tool settings should be "WxHxResolution" - is that right?
It's the one that's ticked in this screenshot: http://1.bp.blogspot.com/-M8RAa8SC5go/VIndVW1j_fI/AAAAAAAAWHA/hHS3LUHDI1g/s1600/save%2Bcrop%2Bpreset.jpg
In my opinion, complete overkill. Just get a regular tablet to replace your mouse. As you say, they are for artists.
In addition to Brian's thoughts, it always comes back to the last paragraph in this article. Don't do it.