A state of well-being in which the individual realizes his or her own abilities, can cope with the normal stresses of life, can work productively and fruitfully, and is able to make a contribution to his or her community. It’s the balance between your emotional, physical, spiritual, and mental self.

Symptoms of Mental illness :

● Eating or sleeping too much or too little
● Having low or no energy
● Feeling numb or like nothing matters
● Having unexplained aches and pains
● Feeling helpless or hopeless
● Feeling unusually on edge, angry, upset, worried, or scared
● Yelling or fighting with family and friends
● Experiencing severe mood swings
● Inability to perform daily tasks

Boost Your Mental Health :

The key to boosting mental health is about focusing on different areas of your life, one at a time. For example, one week can be spent performing activities like yoga, mindfulness, and meditation these can help you live “in the moment.” This means letting go of past and future worries and focusing only on what’s going on in the here and now.

The next week you can spend time at resting and relaxation. Though keeping busy is wonderful, make sure you’re taking breaks and not being too hard on yourself. Lack of rest, both physically and mentally, can lead to burnout and unhealthy coping mechanisms.
Another week can be spent focusing on time with family. This is a wonderful way to boost mental health. A day with your best friend can also help you better cope with trauma, increase yourself esteem, and enhance your mood.

Activities That Improve Mental Health :

● Feed your brain. When life gets hectic, it’s tempting to override your own needs for work, your social life, or other prerogatives. But your dietary health is important.
Find out what healthy foods make you feel best and stick to them.
● Get your blood pumping. Exercise triggers endorphins—the ‘feel good’ chemical—to flood through your brain, as well as reduce cortisol—the chemical that causes stress. Try to get in at least 15 minutes of exercise a day.
● Plan your sleeping schedule and stick to it. Most adults need 7–9 hours of sleep.
If you have trouble resting, it may help to create morning and nighttime routines around sleep, such as stretching, journaling, showering, reading, or any activity that helps you wind down at night and wake up in the morning.
● Do something you excel at. Are you an amazing painter? Focused musician? Speedy runner? Get that adrenaline rush that comes out of doing something well and knowing it. Don’t know what you’re good at yet? Even better. Explore all kinds of hobbies and passions until you find something that clicks.

Reference:
https://www.voasw.org/blog/what-is-mental-wellness-how-to-improve-it/