Your cat will need a lot of things, here are some of the things they might need in a table with their uses:
What you need to do for your cat
Groom he/she at least once a day, especially long haired cat
Change his/her food and water every day
Scoop out dirty litter from the litter box every day
If your cat is sick, give medicine to the cat as told by the vet
Spend at least one hour of play time each day
Dump the whole litter out every week
Make sure that he/she is healthy and eating his/her food regularly