You are focusing too much on things that are external to you and do not directly affect you.
Life has always been hard for most people most of the time. There is nothing about the premise of existence that promises it will be easy or comfortable.
The past 50-80 years have been incredible in terms of advancement, poverty (lowest ever globally), health.
Turn off the news, get off social media. These things are not designed to give you a balanced perspective. They are designed to drive advertising revenue.
Go and live.
If you want to feel better about the world, go and do something that improves the lives of others.