Warm welcome to our forums. You'll find there are many caring, supportive and friendly people in the community.
I've had PTSD, anxiety and depression for a very long time, however was only diagnosed about 9 years ago. Through my 20s I slept very little - burnt the candles at both ends, never realising it was anxiety that kept me awake and active. I worked throughout my life - managing on little sleep. Trying all sorts of ways to get some reasonable sleep.
It was frustrating - the pits really. But somehow I kept going. In hindsight I really can't work out how I managed to survived. A major need for me was to get aerobic exercise - I swam and rode a bike during my 30s and 40s, along with folk dancing. Now, I walk mostly. If I don't get that walk in, I usually struggle sleeping.
Now, I'm retired, sleep happens whenever. Because of my lifelong bad sleeping patterns I can be awake till 4 (or later) in the morning, then sleep to 11.00am. Not the best, but I am managing.
So I really empathise with you. It isn't easy. There is a Sleep thread if you're interested. It can be found by doing a keyword search using the search field at the top of our webpage.
Feel free to browse our threads and to join discussion that are similar to what you're experiencing.