As we can put it, money is just only one of the facets how we survive on this world. But it is not the ultimate reason for living. We have other means to survive and with this in mind, we need to take care of our mental and physical health. There's nothing wrong if our savings or investments is small. As long as we are happy and contented with our own lives, that's much better than worrying too much that we don't have.
But humans are unique creatures, they can force something for their passion where sometimes the risk is ignored. A person can spend 20 hours a day for working just for money, they reduce their rest hours, they continue to work just for the purpose of making money and money but in reality they have unknowingly ruined their 4 hours of sleep just for the sake of money. It is true that having a lot of money and being rich is everyone's dream, but when it interferes with a healthy lifestyle, especially regarding health, it will obviously harm yourself in the future.
As long as you are able to save and invest even in small portion every month I think that would be enough. We dont need to force ourselves in things that are hard for us to do. If you know that your monthly income is just enough for the expenses and you're determine to save then its time to look for other resources to have additional income.
Oh yes, don't forget to be grateful for all the blessings. I also forgot to say that for every sustenance we make today, there are other people's rights there that we may have to share. Believe it or not, giving something of value to people in need will multiply our sustenance, this has really been proven true.