Locked Samsung A51

My Samsung A51 has been locked since 28th of December 2023. My AHDH son changed my pattern and can’t remember the pattern. I have tried different patterns every day and can’t seem to unlock the phone, now I can only try a new pattern every 24 hours. I have watched all your videos and can't unlock my phone, I have entered the phone into save mode and after restarting the phone it’s not on flight mode and can’t get flight mode off, I do not want to lose my photos on my phone. Would you be able to please assist me. Thanks.