Hey guys, what is the fine line between setting great realistic goals, and just plain overdoing it?

I've had some of my best lucids right after getting discouraged early in the morning from not even being able to recall anything...
then theres times where my mind is on point--awareness heightened, total recall, both prospective and retrospective, with strong intent, no stress, and good sleep--only to dream about one of my bosses yelling "False Awakening!!!" and not even go lucid....


I read somewhere that one shouldnt practice every day...or every night....how do you guys feel about this?