Mental health. Is the solution for it?

Hi doctors , I am Shreyas I am 23 years old I am suffering from the different symptom that I will always imagining things in sleep and I don't do the in reality (for eg ; I am driving car in my imagination world but I don't want to learn a car in reality that type of mentaliry) while imagining anything' I feel that happy after wake up I feel sad , anxiety and I am not having interest to do or learn anything , I always feel imagining things and not doing anything in reality world and one more thing that I can't be focused and concentrate while working , driving still imagining thing forget the things to do in reality some times I feel short term memory loss upto 5 mins and again remembering the thing. Why I feel happy in imagination world ?? Why I am having this problems what is the solution for it ??