We have to try to think for others, not just ourselves. If you think for others, you will become very relaxed in your mind. If you only think for yourself, gradually you will develop stress and feel more pressure. So try to think of benefitting others. Even though you can’t benefit masses, if there is just only one person in front of you who needs help and you have given assistance with pure motivation, it would make you happy and your mind relaxed.
Wealth, good facilities, infrastructure and material goods, these give us good health and comfort, but not true permanent happiness. That is why you can observe that there are rich people who are very stressed. Poor people may have to live in discomfort, but they may not be unhappy if they are contented and do not harbor selfish thoughts. Material wealth may cause one more suffering due to the grasping and attachment one has for it.