Well, one way you can tell is by volunteering. Do some small work at a local church, animal shelter, or similar organization and see if or how long you can handle working.
That can be a good litmus test to see if you can survive a job.
There’s a lot of benefits to volunteering besides showing you if you can handle working:
1. You can usually back out much easier. 2. You feel needed and have a purpose. 3. It keeps you connected with the wider community. 4. It can potentially evolve into an actual paid position (though rare) 5. It looks really good on a resume if you go back into the job market.
