Keeping a Gratitude Journal
For an extended practice, turn this into a daily/weekly habit and create a gratitude journal. As frequently as you are able to, jot down things, people, events, etc. that you are grateful for. Things to consider:
What brings you joy?
What gets you out of bed in the morning?
What small things do you appreciate?
What do you appreciate about the friends/family that you have in your life?
This will take the practice of focusing on the positive and make this become more of a habit and possibly make your entire outlook feel more positive.