Salamu Alaikum Sheikh, Jazak Allahu khayraan. Any advice on learning multiple things like Quran, Arabic and daily lessons without burning out?

Yes reduce the time and alternate, so quran everyday, and 1 day u would seek knowledge, then next day you learn arabic. You can alternate like that. Or you can instead of studying for a long time just Islamic studies, you can divide the time a portion for ilm and portion for Arabic.