I found this helpful list in a 'Science of Happiness' magazine. Hope it helps others too
1 Avoid negative people
2 Find your tribe
3 Respect your own needs
4 Be grateful
5 Let go of judgment
6 Make mental health a priority
7 Go on a social-media diet
8 Be present and mindful
9 Move every day
10 Adopt a pet
11 Sleep more
12 Spend time with loved ones
13 Help others
14 Broaden your horizons
15 Savor your happiness