Caffeine gives your body a jolt - and then afterwards you fall down into a low energy trough. Not only that, but caffeine is addictive and you get the jitters if you go too long without having any.
Find ways to wean yourself off of caffeine. Go with a caffeine free coffee. Try out some herbal teas. You will get the relaxation of the warmth without the mood swings of the jolts.
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