Unless you are facing extreme pressures are threatening your mental or physical well-being, it’s generally recommended that you find a new job before resigning from your old job. There are many reasons why this is a good idea, including unfortunately common prejudices that many hiring managers have against unemployed applicants.

https://www.recruiter.com/i/4-tips-to-help-you-find-a-job-when-you-dont-already-have-one/