how can I deal with USPTO directly?
You can have your attorney file paperwork to withdraw as the attorney or record - then its all you.
what should I do?
I would recommend finding another registered practitioner - this is very hard to do yourself unless the office action allowed multiple important claims.
It would an entirely new application regardless that the content was the same. It will get no advantage (or disadvantage) from the first filing. If no one else did anything in the field that anticipates or makes obvious your invention, you are in the same place you were with the initial filing.
If you desire international filings under the Paris ...