Keeping kosher without offending my family

I am a convert,I converted 2 years ago back when I converted I lived mostly alone so keeping kosher was easy but now that I’ve moved with my family its harder. I come from a Mexican family which if anyone else is a Mexican convert knows how hard keeping kosher is. As a result I’ve had to “offend “my grandmother by refusing her food. I’m at a loss my grandmother obviously cooks out of love but a lot of the food she makes I just dont eat because I’m not allowed ,I dont know what I should do.