I found MIND Charity really supportive via e-mail when my friend ended his Life.
Talking therapy helped enormously, being able to vent to a complete stranger. No one telling me 'that can't have happened to you because X, Y, Z'. Once a week with homework
. Mental Health services have never been well supported by the governments of the day being slightly above funding that goes into Elderly Care.
Clinical depression as opposed to organic depression: I have both : can be more difficult to deal with as acceptance can be hard work. Acceptance that a) we can't change the past; b) that it our reaction to those issues that continue to affect us on a daily basis; c) how we react to others caught up in the same family tangle.
I still keep to half a day at a time. Hate having to book anything ahead which is why this time of year is so hard. The expectations etc.. I have a drawer of fixed grins
....... although sometimes it is better when I 'go along', putting on a brave face. It avoids being asked all the while or 'you don't have anything' etc..
Do U keep a journal, I found venting therapeutic. Out of my brain, onto the page and away.
Much of my childhood was a lie. Apparently. In recent years I've found out how my Mum's behaviour stilted my emotional growth!
Your brother and your Mum are a different issue and 1 that she needs to deal with. Unless U think that she is in continual danger, step back. Take care of you.