Urgent help needed

Everytime i try to lay down and sleep, around an hour or two later i'll just get up crying and abandon the idea. No matter what i do i cannot sleep. I am so sleep deprived but so tired and i am not getting any ideas or help from any doctors, they literally just tell me to deal with it. I cannot enjoy my pregnancy like this. It is so hot and i am so tired, not to mention the restless legs i have no choice but to deal with....i know this post is all over the place but i am SO TIRED and i have tried everything. Please help. PLEASE.