There are different non-governmental organizations in Bulgaria that can provide you with free legal aid. If things are not working well with your lawyer, you have the right to dismiss your lawyer and have another one appointed. To do so, give a written notice to the lawyer and the court.
Find a legal aid organization here:
Bulgarian National Hotline for Primary Legal Aid
Operated by the National Legal Aid Bureau every weekday from 9 a.m. to 5 p.m.