1) I think that learning a language remotely is very difficult. In my opinion, there must be a personal contact with a native speaker
2) I believe that it is possible to overcome cultural differences in digital learning. There are many tools for this, such as viewing the lesson record, various tests for different peoples with censoring questions, etc.
3) We can develop our self-motivation by rewarding ourselves for every action we have performed, planned earlier. It will also make us plan our day in advance.