Here are few tips that can help you keep a positive state of mind:
Catch up with all the things you have left behind, that you have not had the time to focus on. Clean the house, be creative, play with your children. Invite them to come up with creative ideas of how we can make the world a better place. Ask them to make a commitment to do one positive thing to help the planet or humanity, once this pandemic is over.
Use this time for introspection, growth, and connectedness. Put the focus on others, not yourself. Research has shown that in times of stress the best way of dealing with it is focusing on others.
Practice positive affirmation. Imagine good times in the future, meditate, pray, connect with your loved ones, feel grateful for your health, and do anything else that will make you feel good (within reason). Watch comedy and movies that make you laugh. Connect to online groups, for example, Facebook groups that motivate people to stay positive.