There are a lot of different ways to create a good font , but some times we can make the most worse Font which we can imagine. The most easier way to cripple the font it is horisontal transformation. You can't correct the font to the good side using fat and slim procedures with the letters if the started result was terrible. The first thing that you should remember if you created the font and the result is really good you shouldn't try to make it better the result will be awful and all your work will go to waste.
You can squeeze your font from 1% till 2% but not more. Some times it can help you to place the text on the page.
Also you should remember that when you place the text near the image you have to be careful with font size. The big font's size can distract the reader from picture or make the picture more size as it be. Please be carefull if you want to create good Font with upper F.