Re-test, then apply in waves

Learn — application order is strategy. Your interview performance improves measurably across the first few real loops, and you do not want that improvement to happen at your top choice.

Do — re-run the exact baseline test from the first node, recorded. Then apply in waves of about ten: practice companies first, targets last, two weeks apart.

Check — compare the two recordings side by side. Are you naming patterns before coding? Stating complexity unprompted? Driving requirements in design? If the delta is not obvious to you, it will not be obvious to an interviewer either — go back to the re-solve loop.

Ship — offers.

If you are getting rejected after final rounds, it is almost always behavioral, not coding. If you are getting no callbacks at all, it is the resume and referrals, not your skill.