I suggest contacting Learn Direct. They offer loads of courses, both online and at local centres. Many of the courses are free; others are reasonably priced. There's some information on their website
http://www.learndirect.co.uk/personal/
but I think that you'll get a better responses to your needs if you phone 0800 101 901 for some personal advice.
Chris
PS: I don't usually criticize someone's spelling but, if I don't, I know that someone will post an unhelpful comment about your spelling of 'gramm
ar'.