Let me tell you one thing first, it's never too late to start a career, once you have knowledge no year gap can bother you from getting a job. There are companies who check the background of candidates,though you have a genuine reasion.
I would advise you to start working on the domain you were working before if you feel like going back to the same domain, as you have an experience working on that. Side by side apply for jobs.
To make you resume a bit strong start researching the latest technology which is on demand in market. Start to make your hands dirty to learn and be the master as nothing is impossible in life, you can achive anything if you want.
One more advice would if you can start doing freelancing, now in this covid situation it is on high demand that there are 100's of platforms where there is a demand for technical freelancers. You can work as an instructor and teach them.
Decide on which way you would like to go and grab it.
Hope this helps!!!