Yeah it does help to get that first interview. Just passing the interview often times means having a good grasp on how to solve LeetCode style algorithmic problems and not necessarily how to build products.

So I am practicing that now and hopefully will pass some interview one day.

I can empathize with your problem. Was just talking to a friend an hour ago about this.

I am wondering whether you have considered companies that don't white board.[1]

[1]https://github.com/poteto/hiring-without-whiteboards