This is not a guide or any sort of structures educational resource. But a collection of links that you can reference to get started on drawing fonts. Designing a quality typeface and making a fonts take time, effort and expertise in;
Context: Understanding the script and the language and their typographic conventions and context
Drawing: Understanding the drawing techniques and developing skills
Technology: Understanding technology related to production and usage
of digital fonts. An understanding of pre-digital era type makingand typesetting technologies helps a lot.
However making a working font file is easy with modern font editor software.
This document presents some online resources related to 2 and 3.
The bezier curve tools and vector editing tools like Inkscape or Adobe Illustrator are not fit for the job of drawing Fonts, which have many different characters. Font editors are software programmes specifically designed and developed for drawing fonts and producing font files. It is strongly recommended to stick to font editor program in drawing. This section has some links on best practices in drawing.
Bezier Curves and Type Design: A Tutorial by Fábio Duarte Martins
Hand Lettering: How to Vector Your Letterforms by Scott Biersack
The Bézier Game by Marc MacKay