How can I leave my lease if I have no money to make rent?

You could ask the landlord for permission to end the lease early, and not hurt your credit, due to your circumstances. If the landlord agrees, get it in writing. If not, you may want to consider sending a letter informing the landlord that you will vacate on a certain date. The landlord then has a duty to try to lease the premises to someone else to mitigate (reduce) its damages.