It sounds like you're experiencing a sense of difficulty focusing when you're trying to learn, and this might be causing some frustration or anxiety. When you mention "学习恐惧症" (learning fear or anxiety about studying), I wonder if this feeling is linked to past experiences, pressure you might feel, or perhaps a fear of not meeting your own expectations or those of others.
Could you tell me more about what happens when you try to study? For instance, what thoughts come up, or what physical sensations do you notice? And when you say you can't concentrate or sit still, how long does that usually last, and are there specific subjects or situations where this feeling is stronger?
Understanding these details can help us explore what might be contributing to your experience and find ways to approach studying that feel more manageable and less overwhelming for you.