If these factors do not seem feasible calligraphy learning books are available in abundance. There are many interesting and informative books that provide guidelines and practice sheets that would help you practice the right spacing when forming the angles of the different letters you are designing. Books giving instructions on how to set up the work table as well as how to form letters and use the ink and pens are affordable and freely available.
Though a vast number of styles are available in Western as well as East Asian calligraphy writing, it is advisable to start practicing one style at a time until you master it and then start learning the next style. This will give you a better idea and understanding of what you intend to do with the calligraphy learning books. You may want to try the style of your ancestral country first due to sentimental reasons, or sometimes individuals prefer to get something contemporary and pick something that is easy to understand and master.