I have experience of working in Mental Health, Learning Disabilities and Older Peoples services.
I have worked in social care, both private and public sectors, in a variety of roles, from support worker to data manager.
I have strong IT skills and relish working with people and systems, always trying to blend people and IT to provide the best possible results.
Try to reprogram your thinking. I know how difficult it is, I share your shyness, but try to imagine yourself doing well in your most challenging situations. Think about what success is for you and how you would feel accomplishing that, immerse yourself in that and then try it on placement.
When you are shy it is so easy to just hide away, so do the hard work while you are alone, once you have a mental idea of how you perceive success you will be able to transfer that into the real life situation. Even if you start with small things, when they go well you will gain confidence, if it doesn't go well reflect on it.