Hi Ellie, welcome to the forum +=-
I completely understand. I too, have gone through a lot and this is what has caused me to suffer from Depression & Anxiety. I'm on Citalopram too! I know that it might seem like they aren't working at the moment, but if you can just try to keep taking them, you might start noticing improvements!
Also, in the first month or so, Citalopram, or most anti-depressants can make you feel worse for the first month or so, so bear that in mind, and seek support at this time if you can!
Feel free to open up as much as you want on here, people are always willing to listen and I can promise you, you will find support and hopefully some good advice on here!
And I understand your mood, depression can make you feel up and down all the time!
I'm always here to listen, so if you ever need someone to talk to, just send me a message or something :)
Also, I wrote a post (quite long though hah) a few months ago on how I've been feeling and stuff, it might help you by reading it maybe. It's in the One step at a time forum! Take care Ellie %^& xxx