I was like you describe and finally had a breakdown in college when I was 20 and getting ready to graduate the next year and realized I'd have to go out into the "real" world. I was in therapy from then, 1970, until 2005. It took until 2002-3 or so to "fix" the daydreaming parts and truly get with this real world. I recommend you find a therapy and get to work trying to get back to this world as otherwise life will get much much more uncomfortable than living it is.