Answer :
Some pieces of advice that may help Mary is to:Wake up at the same time each day, eliminate stimulants like nicotine and caffeine, Limit naps, Exercise regularly, do not eat or drink right before going to bed and always make your sleeping environment comfortable. The insomnia condition will become better. And lastly, never feel self deprecated if you have the condition. You are normal just like everyone else so there is nothing to be sad about. I hope this answer helps and mark as brainliest. :)