You cannot afford a defence lawyer: examine legal aid under Section 61(2) StPO.
Anyone unable to bear the costs of a defence without impairing the necessary maintenance of themselves and their dependants can apply for the assignment of legal-aid defence counsel. The condition, besides the economic situation, is that the assignment is required in the interest of the administration of justice, above all of an appropriate defence (Section 61(2) StPO).
From a legal perspective the application is worthwhile early. The sooner it is clear whether legal aid comes into question, the better the defence can be set up from the outset.