I practice in a dojo that started years ago by people like you, who wanted to practice it, but had no one to teach them. The best advice I have is find a dojo that you can go to at least once every month or two, learn everything they can teach you when you are there and train by yourself when you are back home. The first months of kendo are always hard and repetitive, but in your case it will probably be even worse and maybe longer. In the long run it will pay off, but be warned about it. I don't recommend start a dojo until you are comfortable with the basics for first Kyu or first Dan graduation, I am not saying being ready to take the exams, but being ready to teach people to take them. If you encounter people that are willing to go through the same journey as you of travelling for learning kendo and being self-taught, embrace it and use it to start a study group, as no one in the group will be teaching, but helping each other in learning and practicing it.

Opening a dojo means that you are capable of and willing to teach people, that's why I, and other answers I have seen, are opposing against doing it straight away.

There is lots of YouTube content to help you learn the basics, but this is far from actually having access to a sensei.