1. Walk outside.
While exercising in itself is a great boost to your mental health, going for a walk or run outside has even more vital health benefits. Studies show you'll exert more effort, and will have increased signs of "vitality, enthusiasm, pleasure and self-esteem," as compared to staying indoors.
2. Take vitamin B12.
Studies have shown that a severe deficiency of B12 can lead to depression, anxiety, paranoia and more harmful problems. Get your B12 dosage from pill supplements, or by eating foods such as eggs, poultry and dairy products like milk.
3. Write simple goals.
The National Alliance on Mental Illness says setting simple, well-defined goals like, "I will smoke one less cigarette, each day, for the next three weeks," is a great way to actually accomplish something.
Once you've accomplished that goal, reward yourself!
4. Listen to slow, calming music.
Plenty of studies have shown that performing tasks while listening to classical tracks soothes your mind and reduces anxiety. If you're not one for classical music, opt for other tracks that are slow and simple. No lyrics necessary :)
5. Use lavender oil.
Studies show that lavender oil can improve your sleep quality and help battle insomnia. If you don't want it on your pillow, try drinking a bit of lavender tea before bed to soak up its healthful benefits.
6. Spend money on someone else.
Studies have shown that people who buy something for someone else feel happier throughout day. And you don't have to break the bank every time -- spending $5 for someone else is perfectly effective. Take you friend out and buy her coffee - you get great chit-chat time and you'll feel much better!
Mindful meditation can increase the brain's emotional regulator. It can help combat depression, anxiety, stress, insomnia and more. Start slowly by meditating for three to five minutes per day in order to get comfortable with silence.
There are plenty of meditation apps that can guide you through it!