depression puttin strain on my relationship

iv recently been feeling very down cyin every day allways feel alone dnt feel suicidal buh feel like i dont want to be here no more its puttin strain on my relationship as i dont have a sex life as i sleep on my sofa i cant get to sleep till like 3am n wake bk up by 6 am im allways tired n feel so drained i cant talk bout how i feel to my doctor as ill cry n he will think im silly wah do i do wat is wrong