Is it true that if you are good at math and you enjoy math you can do engineering and computer science?

yes this is true. it mostly depends on what type of engineering your in, some involve math and some don't. see what field of engineering you wanna be in but just because you enjoy math and your good at it doesn't mean you have to be an engineer or in computer science find something that you know you will have fun being. there are many other careers that involve math.