I think all the food I make is bad.
What makes you think that?
Nobody seems to like it.
If you're unhappy with your cooking keep practicing so that it will improve. You could also get someone who is a good cook to teach you new recipes.
Nah, why would I spend so much time trying to improve when I can have someone buy the food?
That's a fair point.  Cooking can be an engaging and rewarding hobby, but it's not for everyone.  If you are okay with buying food, then go right ahead, and you can use your time for things that you prefer.