I can tell you that starting with a big project like that when you are in the learning phase is going to be a path full of frustrations and challenges and probably won’t make the progress you expect in a short time. That’s why most of the people here encourage to start with easy projects and keep elevating the skills needed for more complex games.
But I am not here to stop you…if you trully believe you can achieve what you want despite the recommendations given, then go for it!