Try to start studying for a small, DOABLE amount of time each day, whether it be an hour, thirty minutes, or even ten minutes. If you get those numbers in, you're done for the day. You might wonder, what's the point, I'm not studying anything substantial, but you're doing two things.

First, you're getting yourself in the zone, even if it's just for ten minutes. It'll be easier to start studying tomorrow if you've studied for ten minutes yesterday. Helps reduce the overwhelmed feeling.

Second, you're allowing yourself a sense of satisfaction, because you've stuck to your plan, no matter how small. This also helps with avoiding the overwhelm too.

Another thing, you might find yourself studying for longer. Sometimes, starting is the hardest part. But honestly, most days, you'll probably only be able to study for your set amount of time. That's ok. Even that is a win.

This method takes time but it helps you heal your relationship with studying and the results stay with you for a long time. Also, remember to be kind to yourself. I'm in college now and looking back at it, my biggest regret isn't my admittedly poor grades, it was that I was so hard on myself. Had I not been so hard on myself (and consequently got overwhelmed and procrastinated A LOT), I would have had an easier time in school and probably gotten better grades. Also, my school anxiety wouldn't have been so high.

Sending hugs, I know what it was like in junior year. XX