"Lead to believe I was on the waiting list"

I was previously diagnosed bipolar but after several younger family members were diagnosed as autistic and ADHD I realised very quickly that this is what I had as the original diagnosis never sat with me. I was diagnosed Autistic in 2023 and was told shortly thereafter I was on the waiting list for ADHD assessment. I went to my GP last Autumn to say I had zero support following my ASD diagnosis from MH services and that I was still waiting for the ADHD assessment and my belief has always been that it is the ADHD that has more impact on my day to day life with it being ASD as a child. 

Imagine my upset recently when I received a letter from N.Lanarkshire MH team to say I "will" be placed on their WL despite me having assurance 2 years ago I was already on their list by a consultant who was never there and never listened to me in the first place. 

So now I'm back to the beginning at age 56 struggling to hold down my new job that I fought years to get and fought my own internal mindset due to ASD and my undiagnosed ADHD. I have been absolutely let down here. No follow up from ASD diagnosis and I put myself through what therapy I could but it was not suitable for neurodivergence. Now what do I do? Wait years again?? I have been medicated previously for bipolar disorder and nothing helped obviously and dealt with all the stigma and now set all the way back to the start of a waiting list. 

Im so upset.