Question: Any idea why I’m so bad at studying and how can I approach it better?
Mercury (mind, the ability to learn) is influenced by Aquarius (Uranus aspects), so the traditional way of learning when you memorize knowledge doesn’t go well with the chaotic and ever-changing Aquarius vibe. You should look for learning in a group with a lot of freedom and mutual interests. Like hanging out with your friends to learn something. New technology or methods of learning may also work for you.
Mercury has also opposed to Mars, so try to make your learning time shorter but more intense (Mars in conjunction with Pluto). For example, don’t study for an hour, do four 15-minute brainstorm sessions instead.