I'm a valedictorian of a university and wanted to continue the research path by applying for a teaching assistant position at my faculty. After submitting the profile, the faculty announced that I must wait for the official position because of the COVID-19 pandemic. They let me teach a few classes and only signed a contract to lecture, pay by class (because they don't have enough lecturers), and promised to recruit me in the near future (it's been half a year since then).
But I have just realized that the other faculties are still recruiting full-time teaching assistants normally. So I may have lost a lot of benefits like salary per month, health insurance, fund, ... during a semester. Is this a trick to take advantage of fresh graduates? What things I can do right now? I have ignored a lot of opportunities because of these lies.