Don’t worry about money. It is all in Allah’s plan. Allah gives to those He loves enough for them not to go beyond their bounds.
Allah knows how much we are capable of. If Allah was to give us everything then we would go beyond what is halal. Prophet Muhammad (PBUH) also knew this and he didn’t give money to people if he thought that this was going to drag them into Hellfire. He knew the people.
We should be content with what we have even if we want something and we don’t get it. Allah has a plan. Allah knows how much He is giving. Allah also says this about children. Some get many children. Other’s don’t have any children. It is the decree of Allah.
We have to believe in the decree of Allah and we have to feel the contentment with what Allah has given to us.