Sleep disorders, can they cause no lucid dreams?

So I'm not exactly sure if I have a sleep disorder, but I often cant sleep for 1 or 2 hours. My sleep pattern is soo sensitive, if I wake up 1 hours later then usual that will cause me to take at least 1 hour to sleep. All this even happens after I take 5-10 mg of melatonin usually i take 5 but when I cant sleep I take another pill. And say last night, I fell asleep at 3:30 and went to bed around 11:45. And I want to know if bad sleep can effect lucid dreaming.

And, does anyone think its possible to fix sleeping ways? because I'm totally sick of it, it just makes me mad that I just can't fall asleep with out sleeping pills, and even with sleeping pills its hard to sleep still.