Am a 16 years old Nigerian and in my last year of second and we are relocating to UKWatch this thread
Personally, I did WAEC and NECO. Didn’t cheat so I was awarded really bad grades. Came into the UK, started my a levels and I’m currently taking GCSE Maths and English alongside. It’s stressful but I’d rather have a GCSE/IGCSE when applying to universities or companies rather than a WAEC result.
You can also choose to do Year 11 here, take GCSEs and move on. Either way good luck!