Here, we only celebrate one mass on the anniversary date of a death. And after the funeral there is a novenario which is a mass each day for nine days to pray for the deceased person. And that's it.
I am so glad that you are able to enjoy time with your family and celebrate birthdays with them. And I hope you will soon fully recover from the cough and cold.
As for the opportunity you have been offered, I think you should trust your intuition in making a decision. And best of luck on your choice! 🤗