please help pay with my cat’s vet costs!!

my family doesn't have the best financial background ,, we live about an average life under the financial assistance scheme and have 2 cats. both are outdoor cats. 1 tend to get into fights with wild / stray cats hence he needs more appointments than the other who's usually chill with many other cats and doesn't get into fights BUT she hasn't been vaccinated ir sterilised yet. i'm still a student studying in secondary school along with my siblings who are in primary sch or kindergarten:( please support us as we can't afford the veterinary costs!!