Starting IB this year with 4 HLs – any advice?

Hi everyone! I’m starting the IB Diploma Programme this coming school year and I’ve chosen Physics HL, Mathematics HL, Turkish A HL, and English B HL. I know taking 4 HLs will be challenging, but I’m willing to put in the effort. Do you have any advice for someone who’s just starting IB? Is there anything you wish you had known before your first year? If anyone has taken a similar subject combination, I’d really appreciate hearing about your experience and any study tips. And also are there any calculator models that you can recommend to me? Thanks in advance!