Welcome & getting started
Hi @Dew3 welcome to the forum. 
There are many people here with long term struggles with mental health, including me.
So hard for you that your adult child has broken contact for now. Not surprising you are suffering grief from that. I know something about this as decades ago, I was an adult child who broke contact with my parents. I actually mourned them myself though I had made the break. Terrible time for all of us but it eventually resolved into better relationships with Dad and Mum, a huge blessing. May this time apart bring you closer again in the longer run.
Great to hear you have some professional mental health support.
Hearing what you said about your faith. I am not religious but I do have a personal spirituality that's become more important to me recently, almost like picking up from where I left off with it some time ago. Tagging @Faith-and-Hope who is also a person of faith. She may have some perspectives on your inner experience of this at the moment.
Hope you find the forum helpful and even enjoyable.
Hi @Dew3 .
I have lived experience of having adult children not making contact with me. It's very complicated and very, very difficult to talk about for me. When I have tried to talk about it in the past, the reactions have been less than helpful, and without knowing the circumstances, tend toward blaming the parent for whatever the offspring does that is not acceptable to them. (It's all so twisty and turny and does one's head in)
I do my best to prepare for the hardest days, like anniversaries, say Mother's Day/ Father's Day, birthdays, your own and theirs, December and January celebrations. Recognise it's going to be hard and let that be okay. Try not to be down on yourself for the things you can imagine you may have been able to have done, or do differently. If there IS something you can do to instigate contact, and it's safe for you and the adult child to do so, then work toward doing it. Only you can work out what something like that might be.
You've said you have Faith ... use it, find support people in your faith whom you can trust not to belitte you or put you down for what has happened between you and your child. I think you can be faithful to your belief and still grieve for things that are lost to you, but that might depend upon the belief structure.
Be kind to yourself.
Someone, a long, long time ago when the background causes behind why my children took up their separate lives was going on, a wonderful friend gave me a piece of advice that has helped me so, so much.
She told me if was important to take notice, when I go over things to ask myself if I did everything I could have done, with the knowledge and abilities I had at the time, and if I did, then I tell myself that I have to let it go.
For years I wrote a journal, and that helped me work through much of the surrounding areas of grief.
I won't lie, I'm still grievng for all the associated losses of time that could have been spent with them, and their children, and so many other things.
Find something for yourself,anything.
Try to do one thing each day that is for you, or, if things are heavier than usual, just do one thing that you feel is important to you - it might be to take a shower, or it might be to bake something nice to treat yourself through the week with. I have adapted an Anzac Biscuit recipe to suit my needs, when I can make them, and have a little treat every day. It's enough to push me into doing something.
There's some other ideas like using your skills to upcycle, reuse or whatever something around the house so you can feel the slightest bit of accomplishment for even just a moment.
Recently, I made a little altar for my daughter. It has some gifts from her. It is unspeakably difficult.
