For the past four weeks i've not been able to sleep whatsoever i just lye in bed an day dream all night i've trying sleeping tablets also but no joy

Depression: You sound quite depressed. Insomnia and lack of joy are common symptoms of depression. Let your family know what's going on. Talk to your pcp to ask for a referral to a mental health professional. Your pcp may want to do some tests to make sure there is no underlying medical factor contributing to your depression. Depression is treatable. See: https://www.leanonme.net/ie/about-depression/what-is-depression