Kindness is not (only) in the quantity of what you give. It is (also) in the quality of what has been given.
As little as respecting your neighbour, as little as caring to give listening ears to others, as little as giving your time to be there for others, as little as giving your little to help others, it goes a long way in the book record of kindness.
You don't have to be a billionaire before you can be kind. Start showing it with whatever little thing you have. Even though nothing is "little".