What if someone is self-employed

[Aussie2]

My citizenship is due by end of next year but I'm planning to go for self-employment sometime this year. I got my greencard based on employment through my employer. I left them within four months since they were not doing well financially at that time.

I have two questions

1) Can someone apply for citizenship while self-employed even he got his greencard based on employment ? I will be working in the same speciality though.

2) I was told that Citizenship application should be filed through District Office of USCIS and not through USCIS regional centers like Nebraska, etc., right?

Thanks in advance.

[immihelp]

1. That does not matter.
2. Needs to be filed to regional service center. Read https://www.immihelp.com/usa-natural...n-application/