The paint protection film is a sunk expense. You will very likely not get that money back unfortunately, but it could still help sell the car. Worst case you could position it as having been there to protect the paint and it can be removed leaving a near-perfect finish underneath.
Are the red accents around the wheels easily removable? If you're trying to sell private party I'd consider removing them. The satin finish may be appealing to some, but the red accents seem like a lower likelihood for mass appeal and are more targeted for individual tastes. Removing them would restore a more neutral aesthetic that might get you more interest.
In any case, these cars' value rapidly deteriorate with miles, but at least you have less distance to fall from having bought used yourself.
Quick question on the Xpel, as I just had mine done in December- how is it for longevity? I've already noticed some pretty substantial scratches on mine that I thought would go away. Does it have to be warmer temps for the "self-healing" to take effect? I've heard that could be the case but I still figured the scratches would go away in time and they're still there... and it seems like they were created by simply drying the car with a microfiber towel. Actually sort of disappointed in it so far, but you do have to get right up on it to notice. Standing even 5 feet or so back and it looks fantastic but the micro scratches/scuffs being there every time I clean it are irritating me.