Answer : Yes, you can. But it's important to be aware that there are a lot of important details that go into house design and construction, and if you're not familiar with them, it's best to leave the job to a professional.
That said, there are plenty of resources available online and in libraries that can help you learn about the basics of house design and construction. And if you're willing to put in the time and effort, you can definitely build your own home. Just be sure to take your time, do your research, and plan everything out carefully.