Hi ssaturn, welcome to PC

I agree with TheByzantine, your post explains how you've been feeling perfectly and if you're uncomfortable talking to your mom face-to-face, letting her read that would be a good idea. If you want to personalize or add to it, have you considered writing her a letter about how you feel? Enclosing that article about depression along with the letter might be a good idea too. I know how scary it is to open up to parents about depression. I suffered in silence for a long time before I told my mother how I was feeling, and then went a further six months before I could tell my dad. It's REALLY tough.

Remember that it's very responsible of you to want to get professional help, that this depression is not your fault and that you're trying to actively take care of you. You're taking steps to take care of your own health, and it's a very good sign!

Does your mom know that you've been diagnosed with bipolar disorder? If she does, that might be a good lead-in to talking to her about your depression. In the meantime, if you really need help right away, what about talking to a counsellor at school? They'll know how to help you with your depression and may even be able to help you with opening up to your mom.

Good luck. I hope you keep us posted on how you're doing/how it goes.