Misdiagnosis in mental health - late diagnosed female

Hi, I am new to this. I hope this is okay to post. I am 30 years old. I was misdiagnosed for a decade in the mental health system and was finally correctly diagnosed with autism at the age of 27, exactly 10 years after entering the mental health system. I have unfortunately spent over 7 of those years as an inpatient. It has been an incredibly traumatic time for me. I am finally out of hospital after the biggest battle of my life. As soon as I was diagnosed my mental health has been the best it has ever been as finally everything makes sense. I am so grateful I finally know why I am the way I am. 
However due to so many years stuck in the system and stuck in hospital, it has meant that I have never been in employment before. I really wish to be able to work but I am aware that it is going to be very challenging to get a job with my lack of experience. I have done several level 2 courses this year and have done some volunteering also. I am also plan on doing more volunteering soon. 
I feel like honesty is the best policy for myself - I find it difficult to say anything but the truth if I were ever questioned why I do not have much on my CV for the past 10 years. I feel like when applying for jobs in the future I just want to be honest about my situation and what happened and hope that someone gives me a chance. But I am also aware that some employers may not be keen. 

I was wondering if anyone else has gone through something similar and how they deal with it? How do you tell someone you spent a decade being misdiagnosed, stuck in hospital, and now desperate to get on with my life and hope they do not judge you for being failed by the system. I feel incredibly alone in what I have gone through even though I know sadly my story is not unheard of. Thank you for reading this