It’s the state’s responsibility/problem to bring you a lawyer if you can’t afford one before the police question you. If the cops are so sure you committed a crime then they’ll charge you and get a public defender assigned so they can interrogate you with a lawyer present. If they don’t have enough evidence they’ll try to bully you into talking without a lawyer present and trick you into confessing. This is one of 403 reasons why it’s important to ask for a lawyer then shut the fuck up until your lawyer arrives.