I have trouble with this all the time.
I have tried -- with various degrees of success:
5HTP -- modified tryptophan that sometimes helps me relax
Calms Forte -- homeopathic remedy that sometimes helps me relax
Benadryl Severe Allergy and Sinus Headache -- it's a drug, yes, but it really helps, plus, I have allergies to various things, and I'm prone to sinus problems and vestibular issues from swollen eardrums, so that helps with that, too
Guided imagery from Belleruth Naperstek (www.healthjourneys.com) -- Restful Sleep and General Wellness and Stress Relief -- also really good for anxiety -- I'm NOT a big guided meditation fan, but something about her imagery really helps me. She's got all sorts of documentation and research at her site to explain how/why -- fascinating
Closing my eyes and doing REM-sleep-like eye movements -- this seems to "trick" my body into thinking it's sleepy
Opening my eyes for a count of 20, closing them for a count of 20, opening them, closing them... forcing my eyes to stay open, even when they are heavy... until I can't keep them open anymore.
Progressive relaxation -- relax your body, part by part, from toes to head, and see what happens
Do not drink anything less than 2 hours before going to bed
Exercise early in the day. Wear myself out. Make it impossible to stay awake after 10 p.m.
When all else fails, there's always sex. That seems to be the most effective one of all. Some people are woken up by the rush. Others are relaxed by it. All by yourself? Self-love is always an option. And no one ever needs to know. But your grades may improve
Good luck
VV
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It's just me.