I am sorry that you've been experiencing feelings of stress and overwhelm recently. It's completely understandable to feel this way. I want you to know that your thoughts and emotions are valid and significant, regardless of the challenges you're facing or the circumstances in your life. It would not be easy to cope when those closest to you make you feel like you're not doing enough. However, I can see that you possess incredible strength and a remarkable work ethic. Remember, grades shouldn't solely measure success; what truly matters is that you give your best effort in everything you do. Your dedication and commitment are truly remarkable and should never be underestimated. I am proud of your serious approach towards your studies and your willingness to do everything you can. I understand that external influences may make you doubt yourself, but when you feel this way, try to take a moment to reflect on your accomplishments throughout the week. One way to potentially recognise your progress is by keeping a weekly diary or to-do list. By the end of each day or week, you could review your achievements and gain a clearer perspective on how much you have accomplished. I know that when I see a physical list of things I have completed, my mood boosts so much. Some things on my list are not academic related and include things relating to the gym, self-care & plans to see friends. Having a balance of things that I enjoy on my list has saved me from tremendous stress and has reassured my productivity. Maybe you could take some more me time & step away from your books for a little while, get some fresh air and enjoy something you love, even if this is for 5 minutes a day. You do whatever is comfortable for you.
When it comes to your family dinners, it's understandable that your mind may wander towards your worries. However, if you sense this happening at the dinner table, I suggest making a conscious effort to try to let go of those thoughts and actively engage in your family's conversations. By actively listening and contributing to the discussion, you may find yourself feeling more connected and distracted from your initial concerns. While this can help you, I strongly believe that calmly communicating your feelings to your parents would significantly improve your situation. To initiate this conversation, you may want to start by apologising for any negative emotions you may have displayed and then proceed to explain the reasons behind why you had been like that. Express that this is very important to you as you are working at your full potential - doing your all to make them proud and that you would appreciate their understanding and support during this tough time.
I truly hope this helps, I know year 12 is so difficult, but you are honestly shining so bright and I have no doubt that you will achieve amazing things. Keep working hard and if you ever need someone to chat to I am here. We are all here for you 
