pale and sun sensitive sound like a deficency to me. also, oxidative stress of unsaturated fatty acids destroy the skin ability to darken, and that is very bad. sounds like you are out of vitamin d, or iron, or vitamin c or something.
only use sunscreen if your skin hurts. if you are getting tanned, you wont need sunscreen anyway. thats what the tan is for
"reduce dullness / add glowiness, get rid of dark circles below eyes, reduce appearance of fine lines and red spots"
all signs of vitamin deficency. is you hair getting thin, gray, and weirdly curly, and the ugly side? thats deficency. bloodshot eyes?
make a blood test. you will be surprised.
sounds like you are low on iron and a couple of other things.