How can I fix inverted nipples at home? Both of my nipples are inverted.

There are different degrees of inverted nipples. Successful treatment depends on the severity. I'm not really aware of anything you can do at home that will really correct them. I have seen patients who have even tried piercings, which also don't really work well.

I think it is highly unlikely that any home remedy will work to fix inverted nipples.  The forces inverting your nipples are strong.  If you wish correction I would recommend seeing a plastic surgeon - the fix is surgical.