Autism and "Emotional Intelligence" in the Workplace... thoughts?

I have a good role, which I enjoy, and find challenging, which again I enjoy. However, my biggest downfall is my ability to control my emotions in certain situations. 

For example, I take things literally, too personally, or "over react" in situations which others may find trivial. My only social relationships (or friendships) are the people who I work with so if I ever vent, it's with them, which unfortunately is seen as bringing my colleagues into matters which shouldn't concern them. 

My main issue which people tend to notice, is that when my emotions become confused or overwhelmed, or I don't know how to express myself, I cry. I've just had a meeting regarding something I was frustrated about as I left the office last night, and it was mentioned that in the past 4-5 months I've ended up crying, and I need to learn to stop taking things so personally etc etc etc.. which just made me MORE frustrated so I cried more!

It's in my diagnosis report that I have difficulties expressing emotions in the correct way. It's in my Occupational Health report I believe. But I feel as though my emotional state is forever going to be the deciding point of what people think of me - and that's getting me down. 

Does anyone else feel this way or experienced anything similar? More to the point does anyone have any advice on controlling emotions when you have a condition which already makes it ridiculously difficult to do so?

People keep telling me I need help - but I've done the counselling, CBT, hypnotherapy, antidepressants, etc etc etc. I've always tried to help myself too but I just don't know what other help I can get.