Hypochondria is sending me crazy :( please help

Hey guys, so longgg sotry short... I'm 20 years old and so far for this past two months, I sort of need to use google for my symptoms idk why, and so far I thought I had, lung cancer, colon cancer, prostate cancer, and MUCH more life threatening stuff.... currently I think I have heart failure because of an annoying dry cough with some short breath (probably caused by saharan dust flowing in my country)

Can anyone give me advice... I worry so much always its ruining my life ... Has anyone had similar experiences and stuff? 

Please reply asap sad

Anyone neutral