Other organizations offer grants too. Each with its own windows to apply. Some have different rules, but most agree that the funds must be used within the US within one year.
Some require you to have your surgeon letters already, and a surgeon ready to go, and provide their contact information. Some allow funds to be used for other things besides genital surgery, such as FFS, tracheal shave, electrolysis, and so forth.
With each one having a different window, you can apply for one in June and another in September or November at a different organization.