Issues Anxiety Fear Depression. Self?

Hello Doctors I am male - got Tinnitus 4.5-5 months back and started googling, got very scared reading online and had a really bad time - I am coping with tinnitus a bit better, but this phase has thrown me off the cliff - I am very fearful right now( don't know why) feeling sad - like nothing will ever go right and i will always be sad.. i feel i am never going to be able to live my old happy life - nights are really tough and scary. If i am around people things are better and i am not bothered but as people go to sleep i get kind of scared unhappy etc - the memories of these 4.5 months of phase are scaring me even more like i am never going to be happy and always scared and anxious. Need your advices, i have lot of negative thoughts right now like i am going to be always unhappy etc. Not feeling like the carefree myself. Please let me know if this is a common thing and with time, meds and therapy every gets well and back to their original self?