Should I quit my job to prepare full-time? Decision paralysis

Been working + prepping for 8 months. Mock scores plateaued. Family supportive of dropping job for 6 months. But scared of zero income. Honest opinions?

Plateau ≠ ceiling. Most plateaus break with method change, not time change. I'd try 4 weeks of new approach before quitting income.

I quit. Don't regret it. But I had 6 months runway saved. Without runway, dropping is gambling. Math the runway first, decision second.