im having a lot of irritation and discharge but my bag looks all normal and yesterday i had jelly like green/yellow discharge and it hasn’t happened since

Hi, this is a symptom of bacterial vaginosis.

what can i do to get rid of it and how does that even happen

You can either get over the counter medication ASAP (idk if these are available where you are) the other option is to schedule an appointment to see your doctor for a prescription! ASAP as well!