Effective Ways to Study Korean with ADHD

Hello, I have been attending a language school in Korea for a year and am currently taking a break from studying. I have ADHD, which makes me reliant on medication while studying, and because of this, I struggle with self-study. I am planning to study independently for about three months before returning to Korea, but I am unsure how to approach it since my proficiency levels in different language areas vary. Speaking is particularly the most challenging aspect for me, so I am considering transferring to Sogang University to improve this skill, and I am also contemplating returning to my current school to prepare for the TOPIK. However, I am worried that if I keep studying without a break, I might experience burnout. Since I can only focus when the medication is effective, I want to find an effective study schedule. I am also considering online tutoring and specialized speaking lessons. Could anyone share effective methods or schedules for studying Korean for those with ADHD? How can I enhance my learning efficiency?