Talking/crawling if so when

Any babies saying words yet or crawling my baby will be 7 months next week and no sign of any she squeals and screeches we had her 6 month apt and they tested her hearing pedi said they will be considered in by 9 months not doing either ugh I get so nervous I know every baby develops on there own but I don’t see any progress with her laundage she never cood as a baby or babbled, I talk to her all day and she’s never watched tv I feel like I’m failing or missing something