You can do it by switching between subjects regularly while using different resources for each, like videos, books, and practice exercises. For example, dedicate 30-45 minutes to one subject (let's say math) using online tutorials, then switch to another subject (like history) using notes or readings. After a switch, take short breaks to maintain focus. This keeps the brain engaged and helps with retention without overwhelming yourself. Just make sure to plan your schedule with variety to keep things interesting. Just make sure during breaks, you avoid distractions like your phone, those are what really mess with your concentration! And of course you can change the resources for each subject, you don't need to stick to one. Choose the type that you think suits the subject the best