For learning Pashto language it is necessary to know alphabets in Pashto. You have to know alphabets in Pashto to learn writing in Pashto language. Pashto alphabets are the building blocks of Pashto language. There are 44 characters in Pashto alphabets. Pashto alphabets are made up of Pashto vowels and Pashto consonants. The Pashto alphabets contain 7 vowels and 29 consonants. Pashto vs German gives a comparison between Pashto and German alphabets.
Pashto script is also known as Pashto writing system or Pashto orthography. The set of visible signs used to represent units of Pashto language in a systematic way is called Pashto Script. The Pashto language uses Arabic i.e. Pashto alphabets are derived from Arabic script. The script decides the writing direction of the any language, hence the writing direction of Pashto is Right-To-Left, Horizontal. Learn Pashto Greetings where you will find some interesting phrases.
Is Pashto hard to learn? The answer to this question is that it depends on one's native language. One should start learning Pashto language with Pashto alphabets and Pashto phonology.
Time taken to learn any language that is mentioned here is the approximate time required to learn specific language for the person who is proficient in English. You can also go through all Indian Languages and find if Pashto is one of the language of India.