I would say get out and enjoy yourself. I'm a freshman so I wouldn't know much about this, but hanging out with friends on weekends and after school really helps me get through. It helps reduce stress, and can also boost my confidence for a test/ important thing the next day. I have a biology teacher who doesn't believe in actually teaching us because to her it's boring. So asking friends if they understand and even copying their hw can help a ton. So just get out and meet some friends and hang out with them.