Sorry you've not had any responses about this. Are you sure you've posted in the right place? Here's a link to our subject forum which should help get you more responses if you post there.
You can also find the Exam Thread list for A-levels here and GCSE here.
Just quoting in Puddles the Monkey so she can move the thread if needed
Absolutely, just start putting in the effort now and really focus upon doing your best to be prepared for the exams. Go over past papers and focus on any areas that you're struggling with particularly