To certain them

You really have to work really really hard to be successful. Since i’m a creative most of my friends are models, artist, photographers and creatives in many fields. I don’t see most of my friends putting in the work thats required in their various fields and i’m pretty much sure most will have to go to corporate jobs since they haven’t built a foundation for this jobs to certain them.
Please clarify paragraph " I don’t see … certain them.", especially, “to certain them”. Because the paragraph is pretty obscure to me.
Thank you.


It basically means that most freelancers are struggling to make ends meet. Many of them don’t earn enough to even cover their basic needs, especially health care and rent.