im 18. In your opinion, should I be worried?

[jqf1]

Hello guys,
I am not sure if I am displaying signs of early male pattern baldness. Its really been bothering me recently and I cant seem to get my mind off of it. My worry areas are my temples(Left seems to be thinning faster than the right), and my crown. I am 18. I have uploaded two versions of each picture in a different lighting. In your opinion, should I be worried about losing my hair or am I going crazy?
thanks

[BaldBearded]

If you keep on posting the same post over and over again, do you expect to receive a different answer?