would functional skills be best for someone who has been homeschooled for years? or should I try resitting GCSE's in college.

I gave up on homeschooling after my physical health declined, im aware its my fault and im not asking for pity points, its just relevant.

even though Im no longer in education, I'm not smart at all, but i still want to try to get a job. Would it be impossible to get a job with functional skills? I dont have any adults in my life who can explain or help me, and nobody has been willing to help me since i dropped out of education.

I know GCSE's are better but I'm aware I'll fail if i even bother resitting them and itll take me more than one try. I just dont know if trying over and over is worth it