Why is my face shade so uneven seriously?

Like I'm pale and I'm hawaiian but when summer comes I tan like crazy, but i tan unevenly. Like my forehead becomes brown and my nose because light brain and my upper lip area becomes brown. While my cheeks are white. It looks so stupid and I look weird in pictures and it makes me look like I have a mustache. What should I do about this? :( How can I fix this?