Lucid dreaming is definitely not a curse. I don't quite understand why you feel that way. Do you experience nightmares while you are lucid or do you just not like it because you don't choose to be aware? The layers thing is interesting. Going to sleep in a dream won't slow down time or anything like that in Inception or cause you any danger. You just dream that you went to some new layer but in fact you are in the same dream. However if you expect something to happen in a dream it will. That is the cornerstone of dream control after all. If you learn to understand and be optimistic about your dreams they will become much more pleasant.