English to Spanish Other Computers: Software Translation memory

Hi, everyone.

I’m beginning to use Trados and I’m using TagEditor.
I hope you can help me figure out how can I update my translation memory after I have translated a part of my text and saved it.
Do I need to update every time a translation memory after I have completed a portion of my translation with TagEditor and when I close the file?

Any help will be highly appreciated it. :)
Thank you very much!