Why do my ads always appear as just a mash of words all together when I do type them as a spaced out ad?
Because what you typed was a text message, and you sent it in html format. To see HTML code as text (before rendering) and vice-versa you have to click the "Source" button on the top left corner of the message builder.
This is how the Source button looks like:
See also a similar question here.
If you want to get your plain text message sent as is, just follow the link "... send message in TEXT mode".