I understand how you feel - sometimes, when I'm feeling 'down', it's like you know that you need a 'recharge' of your emotional batteries before you can handle the problems, or even the successes of friends. You just feel drained, and want to shut down.
On the other hand - you know that you NEED your friends - and that it takes BEING a friend, to have a friend be there when you need them.
When I run into that kind of situation, I know I need to call my friend -but I also know that the call will probably push me into overload - so I set up a 'backup' plan. I'll set a timer, ring the ringer on my cell phone, ring my own doorbell, or tell my son to come and get me - I'll create some reason to "interrupt" the call - so that I limit my time on the phone.
I've still acknowledged my friend's need for support, and I have protected myself from becoming even more "down". I WILL call her back for a long discussion at another time when I'm feeling better - but this way, nobody gets ignored or hurt.
You might try this with your friend - it will acknowledge her happiness, while limiting your exposure to it and might save your friendship.
I completely understand where you are coming from. I may very well be in the same position as you are job wise. I work for a company that has a bunch of branches. First they closed down our claims department and sent all our work to another branch. I work clerical and I supported the claims dept. Well after they were gone I was moved over to the commercial lines side. Well, they are talking about going totally online at some future date, possibly by the end of the year. That would eliminate everything I do. I too know people who are getting newer cars and I cant afford one. Mine is a 1997 and has problems with oil that they said they would have to take the engine apart to the tune of like 4K so I just have to keep putting oil in it.
As far as your friend, it has been several days now so I dont know if you have called her or not. If it were me, I would wait a few days til I felt better. That way I would not end up saying anything I shouldnt say. I hope you are feeling better now. That is what I am going to have to start doing. I went off on my best friends voice mail on both her phones and she is really upset with me. I dont know if we can still be friends. It is up to her. I was just so mad at the situation I just called. I should have waited til I cooled down. You need to take care of youself first. Noone else will. But you do need your friends. I have one good friend. She is our vet. I used to work with her but we were not friends then. I followed her to the 2 clinics she went after working where we both worked and within the past 6 months or so we have become good friends. When I am with her I laugh alot which is important. I have several other good friends but I know what it is like when they are so up and you are so down.
Please post again so I can see how things went.