I've recently asked on reddit about help and they said to ask you on mts So I've been trying to translate some mods to Polish and sometimes pronouns can't be skipped so is there any type of thing that will change text depending on that sim gender?

You can use {MA.your text} for male sims and {FA.your text} for female sims. That way, the game will pick the appropriate pronoun according to the sims gender. However, they don't work in every case. I'm not sure about the details but I think they will only work when the sim is considered an actor in the code (MA = Male Actor, FA = Female Actor). For most mods, this will do. If anyone knows anything more, I hope they can shed some light on the matter.