How to deal with facial hair?

hi, I have Asian hair, and i trim my upper lip with a trimmer. but after I do that i see a stark difference between the area i trimmed and the rest of my face.

how do i avoid that? I've tried using the facial razors but they cut me. ive only ever trimmed my upper lip and nothing else. please help!!

when i do my makeup it looks really weird and my foundation doesn't look right.