How to write own programing language. What is skill and knowledge i want to know?

Question

progaming language

Answer 1

SoloLearn had a contest to make a language. You might want to check how some of the answers.
https://www.sololearn.com/learn/9298

Answer 2

There are 3 main types of languages.
- Interpreted: they use an interpreter which directly runs the code
- Compiled: turns the source into another language (often assembly)
- Mixed: languages like Python or Java compile down to bytecode then interprets such bytecode

Making an interpreted language is easiest to make here are some links:
https://ruslanspivak.com/lsbasi-part1/
http://craftinginterpreters.com/

Answer 3

Get Idea from other programming language's drawbacks,and make it possible in your new programming language.Use the earlier concepts and some thing new.