Use your extra time to apply to more places the roi is higher. Get feedback from interviews than focus on those areas. What you think you need might be different than what the market thinks
How many jobs have you applied so far to? Have you done everything you could when it comes to applying to those jobs? (eg virtual coffees with potential colleagues, contacting the hiring manager, etc)
I did apply to around 30 job openings, and the market at the moment is 31 job openings. I did not try to contact people working in the companies I applied for, I have the bad feeling it would make things worst