Uncontollable repetitive thoughts. Help!

Hello, I am suffering from sleep problem i dont get sound sleep feom last 10 years. I am very restless impacient person. I unable to sleep well at night mind goes on while sleeping. Before sleep i slways thinking after 1-2 hours i get sleep automatically for 5-6 hours and i dream and in the morning my jead is heavy. I feel frustrarted. I get repetivte thought the moment i wake up which distrubs me alot. I unable to ride bike with full concentration it is very poor. I always thinking while driving or riding. Thought are repetive in nature. When i listen go song it is always repeats in my mind during night or automaticall at any point lf time. I feel frustrated by the thought that i am ill and ibalso have carrer and marriage forward so i panic about the situate more as i am 29 . Please help amd suggest something. Someone siggested me anti depressent drug yesterday which is escitalopram and clomazepam 10 mg. What should i do. Pleade help