Make-up settles into lines that weren't there before. The marks from old spots are still there. Your skin looks tired even on the days you aren't.
You've bought the serums. Some helped a bit. Most of them sat on the surface.
Microneedling works further down, where your skin makes its own collagen. Research shows a course can soften scarring and fine lines, and many people notice smoother, brighter skin as it goes.