Charity is not confined to spending money
Many people limits giving charity to money.
What if you do not have money, consider the Hadith of the Prophet,salllaAllahualihiwasallam,
On the authority of Abu Hurayrah (may Allah be pleased with him) who said:
The Prophet,salllaAllahualihiwasallam, said, “Every joint of a person must perform a charity each day that the sun rises: to judge justly between two people is a charity. To help a man with his mount, lifting him onto it or hoisting up his belongings onto it, is a charity. And the good word is a charity. And every step that you take towards the prayer is a charity, and removing a harmful object from the road is a charity.”