Vet visits and bills

My dad will not help with any vet or grooming bills, and I am a teenager who is struggling to make money. Both my dog and cat need to go to the vet, and they are not up to date on anything so I will have to do everything to get them up to date, and my cat might need a few tests because of some things going on with him. My dog also is severely matted and needs a groom but I cannot afford it because it is roughly $100 to start. Anything helps!