The key is that you have not abandoned your place of abode. If it looks like a person is spending more time in the US compared to their home Country, a question may arise to whether that person considers the US their place of abode or the foreign destination.

Some suggestions to show you have not abandoned:
1) employment letter
2) bank statements to show you will support your trip
3) a document that shows your current home address abroad.

I assume you do not have a "traditional" job? I would wonder how you can take so much time off of work.