Once you are ready, you can export your new font for other users to enjoy. You can setup guides and a grid to make editing easier, particularly to help migrate your design across other characters. Simply start with the basic points of the font, then move around to tweak the style. To get going, choose the character you want to design and you'll be presented with a range of tools. You can also import an SVG file or a background to get you started. This is open source software, which means that users are given free access to a huge number of existing fonts that they can then edit in any way that they wish to make these fonts completely unique. Note: This is a free app, but donations of 10 USD or more on the developer page are encouraged and allow you to download the commercial version of BirdFont, which allows you to create proprietary fonts.
If you have a font design which you like but want to tweak, you can simply import an existing font and start editing. Birdfont is a special app that makes it possible for users to create their very own fonts. BirdFont is a free font editor that lets you create vector graphics and export TTF, EOT, and SVG fonts. You also see all the characters you have to design - which includes capital and lowercase letters, numbers, symbols and many others. When you start Birdfont, you have a blank canvas, which can look a little daunting. For a $10 donation, you can move up to a Birdfont with support for coloured and OTF fonts. The difference is a measly $5/year subscription.
When you first download Birdfont you need to figure if you want to produce an Open Font or commercial fonts which you can put on the market. What you need is a dedicated font design tool and Birdfont should be considered, despite the steep learning curve. All versions of Birdfont has gained many features thanks to designers buying this program.
Birdfont runs on Linux, Windows and Mac OS. It comes with upgrades for one year and the version you have will continue to work even after the one year period. Try creating an entire symbol set in Illustrator. A commercial version with support for color fonts and OTF fonts. Not only do you have to find a particular style, it then has to be carried across every character, consistently. You may be a designer, but creating fonts is an art.