Could you look for a job that is at your level now, not above, so you keep salary at the same or similar level as now? I get that we want to make more money but if those jobs just don’t materialize one interview after another, it might cause you mental and physical health. It will be more pricey in a long run.

Especially if you have hard time staying at your current job.

I don’t feel that you can continue repeating the same cycle of interviews. It’s incredibly stressful under any circumstances. Something just has to give. Not saying give up but tweak it