You mean medical insurance or 1095-A? You can use the search bar to search for 1095-A. then use the jump to link to be taken to your Obamacare/1095-A summary. If you see entries listed, you can delete them from there and start over. If you are asking about other insurance, let us know.
I need to go back put that I have health insurance. Like restart that part on my tax’s
If you have health insurance, you needn't report anything.
You would only need to report getting Form 1095-A reporting credits from the Marketplace.
Continue though the return and if there is anything more the program needs about your health insurance, it will ask during your final review and/or Smart Check
Ok but I made mistakes on that part of my taxes how can go back and redo that .
That section is located under
Deductions & Credits
Medical
Affordable Care Act (Form 1095-A)
You might also look at your forms to see if something needs to be deleted
If you care to give us more details we might be able to help more.
What were the "mistakes"? What "part of your return?"
Did you start entering a 1095-A
Do you have health insurance through your employer?
There are several questions that the program asks only once and the question can't be returned.