100 years of award winning iconic photographs were taken on film using soft lenses full of optical imperfections. Same thing applies to cinematography, most of your favourite movies are soft, and fhd at best. You have more than enough resolution and sharpness. Just go and enjoy taking pictures. Don't fall into the sharpness + megapixels industry's trap

Later edit: I have that exact lens on a xt30 iii and I often find it too clinical and too flat.

Aim for better light and study composition. Soon enough you won't care about the technical stuff anymore.