However, I simply don't feel like it.That's definitely not going to help. The more time passes, the harder it will get.
Instead, try to take this time away from a job as an opportunity to gain relevant qualifications. This could be as simple as learning a new programming language or a new framework etc., contribute to open source projects, or - if you want to go down the corporate route - get some sort of certification. Also, soft skills, like spending unpaid time for a good cause is often valued highly by employers who don't just want to hire a machine.
A simple but effective way how to improve employability is to look through current job postings and note what skills and qualifications are asked for. Then compare to your own resume and from there derive a plan how to close the gap. Of course, that is not possible in arbitrary ways and a short amount of time, for instance, if you don't have a degree but most jobs you're interested in require one. But there are a lot of opportunities to make your CV better.
Speaking of which, you may want to really spend some time optimizing your resume, and do not forget to always tailor it each time to the specific job you're applying to. Like in many areas of life, one size does not fit all, but if you have a solid base resume then the adaptations for each job application will typically not be a lot of work.
Also, in my experience, cold applications to jobs are one thing but if you have the chance to feel out for opportunities through your network of contacts that might actually be a more promising way to get a job.