Tell me as much as possible about your experience?
You cannot get a nursing degree online. You could possibly complete some prerequisites online, such as English, basic math, or basic science. But nursing course must be taught by an accredited school, and typically have a laboratory and clinical component to them (working in [...]

I would like to study with Dr.
Cohen at Cambridge U. in UK to obtain a doctorate in developmental psychology with emphasis on autism
As people have said, you need to contact him - not least 'cos you need to know whether he has any funding on the horizon for new projects, and if so whether any [...]

Pretty self-explanatory… Any help you can offer would be great! Thanks in advance!
There is a distance learning (on line video) program at Georgia Institute of Technology. Here is the link:
http://www.dlpe.gatech.edu/dl/degrees/index.php
You can expect the courses to be hard.
Another resource to try is this link. They have a listing of of online programs [...]