Hi albers
sorry to read you are having such an exhausting time. I must admit I'd be totally exhausted by a 2yo coming into my bed every night too!
Can you clarify the situation please?
1. Sleep training.
In your first post it seems you were trying GW but you became stuck at the door where she could see and hear you and that you had been there for a month.
In your recent post you say she is good at going to sleep on her own now. Have you therefore sleep trained and achieved full independent sleeping over a period of 3-4 days? Is your issue of a "difficult to sleep train 2 year old" resolved now? Are you able to do the BT WD (cuddles, song or whatever), say goodnight, leave the room and go immediately off downstairs to begin your Y time, watch TV, do house work, spend time with your other children or DH or whatever, without further interruption?
2. Night waking and co-sleeping.
In your first post as I understand it she is coming into your bed nightly to co-sleep, is that right? And she would sleep well in with you?
When did you stop co-sleeping, was it right after you posted? So was it the 3-4 nights between your first post and second post?
Have you continued to not co-sleep since that last post or did you return to it, if so when?
Can you confirm then that you are no longer co-sleeping but the issue is that she is crying in the night?
Sorry for so many questions. It would really help us to know what the situation is now so that we can offer advice.