1. Check the course deadline: log on to the mobile course platform of Lesi School, find the subscribed courses and check the course deadline, which is more convenient for planning the follow-up operation.

2. Renew or upgrade the course: If you are satisfied with the current course and still need to learn, you can choose to renew the fee. The renewal option will be provided on Shu's mobile phone course platform, and you can choose the appropriate renewal plan according to your own needs. If you want to learn more relevant content in depth, you can also consider upgrading to a higher level course.

3. Find other learning resources: If you don't continue to study on the mobile phone course platform of Tree, you can also find other online learning resources.