So when you feel bad, have a very bad day, or even a slightly bad day, grumpy feeling, lousy mind, your body feels tired - please be as gentle with yourself as possible. Notice it. Do not resist and react like this is something wrong. No, it isn;t, it is the way it is.
Sometimes we feel great, sometimes we feel down. Allow both. Observe yourself in both situations. Both are of the same source, our ‘lower brain’. What we should aim for is a state of gentle neutrality, of kindness, of compassion - no matter what. We often forget or not even taught that we need empathy towards ourselves - first and foremost.
Overenthusiams and depression/fatigue are really two sides of the same coin.
When we indulge ourselves with feeling great - we will go through a down cycle with more resistance (feeling more pain and suffering). Always striving to feel great, makes our bad days - worse. Because we live on a planet where everything goes in cycles, the only thing we can control our states of mind is to reduce the intensity of the polarity, reducing the gap, making it more harmonious and natural. It will sort itself out.
If we try to control our mood and vitality by judging that this one is good the other one is bad, we lose ourselves in a more and more hellish cycle.
On those bad days treat yourself like a baby, an innocent child, or a lovely pet animal. Take care, slow down, pay more gentle attention, use kind words in your internal dialogue. Treat yourself with gentle, tender loving care on those days when you feel less than good.
Also, let's remember not to get caught in the overjoyed state, and let's not crave it. Otherwise it will stab you in the back, when natural homeostasis of your body will want to make for the imbalance and put you down, in response, in some time in the future.
Also notice when others have a bad day.
Do not require, especially from loved ones, to be of a certain joyful disposition, all the time, and be surprised when one day they are not. Our society puts a huge demand on positive expression and there is almost no room to be of reflective, introverted nature. This seems sad and out of tune (out of tune with the societal demand to always feel good).
We need both - times of healthy and happy expression and times of 'stopping the world', of quiet, still impressions. Moments or days of reconciliations with our inner pain, hurt or dissatisfaction. Everyone has those. Without the second our happy days seem inauthentic, false and forced. And we can sense it in ourselves and others.
No wonder that mental health problems are on the increase. We need to learn how to go through lower cycles in our mood with greater care, and lessen the demand to always feel great.
