To patent an idea, do you need to make a prototype?

I have a really great idea for an idea but I’m only 15 and haven’t had any college education on how to build any kind of prototype. With technology as the fastest growing industry, I’m afraid my idea will be stolen before Im 18. However, there is no age requirements on getting a patent. I have enough money (me and parents combined) to hire a lawyer and anything else I need to complete the process. So, I was just wondering, do you have to make a prototype of your invention before it gets patented or can I get a patent on the idea itself? And if you could, please explain the process of getting a patent. Thanks to anyone who can help!