The best way to appreciate someone is to imagine your life without them.
To know if someone or something really matters. Imagine life without them.
For example look at your social media if you can see that some pages would make you less stressed unfollow and if you can see some pages would be missed they benefit you, keep following them.
If you are complaining about someone in your life. Imagine all they do for you and then imagine life without that and you will soon realise how lucky you are.