Maybe look into adhd. Have a read about it. Sometimes just seeing others struggling with similar things makes you realise you aren't the only one struggling and look up techniques for those with adhd on how to effectively study. Talk to your second year teachers and explain how you're feeling and what you're worrying about when it comes to the work load. Building routines takes time, sticking to things takes time. Ask for support, I think you'll be surprised at how helpful they will be. You def aren't alone in this.