Hey bikerchic!
Like this?
When I want to start a new paragraph and can't get out of the quote section?
My first 'easy peasy' tip to try out is this -
When you start a new comment, and before you type anything or paste anything...
Use the return key / carriage return about ten or so times to go down the page
Then use the cursor keys to go back to top and start typing and pasting
This means if you get into a problem or situation such as you describe - you simply escape it by using the down cursor keys to move on to the blank lines you made earlier.
(and don't worry about deleting any unused extra lines at the bottom of your comment / post before you submit it - I understand that Simon's forum software automatically removes any 'spare' blank lines)