1) I think that learning a digital language may well be a permanent way of learning. Thanks to the Internet, you can find a large amount of necessary information, so you can study the topic in depth and do not lose information, it is always available.
2) I think cultural differences can be overcome with online learning. Thanks to the joint study of people from different countries, people can learn not only a new topic and a new language, but also learn about the cultures of other peoples and respect them. But if it is not possible to combine the training of people from different nations, then you can study the topic by recording the lesson yourself. If you have any questions, ask them to the teacher.
3) I believe that self-motivation can be developed thanks to set goals and a clear plan. If you make a plan, the task will seem much easier, so it will be easier for you to get to work.