I just came across this article, which has some interesting ideas on a general manifesto for all language learners. It is written with English as the language being learned, but it can be applied to any language:
I can be FLUENT in English. My goal is to be FLUENT. My goal is not to be perfect. My goal is just to be FLUENT. I can be FLUENT and still make mistakes.
F:First I must forget what I learned in school. I will make a fresh start. I will forget the rules of grammar. I will forget the quizzes and tests. I will forget all the times I made mistakes. I will forget what my teachers taught me. I will forget my native language. I will forget who I am. I am a new person. I am an English speaker. I will make a fresh start. I will have fun! I will focus on things that are fun and interesting. I will learn.
L:I will learn how to learn. I will listen a lot. I will let myself go. I will listen and let the English language enter my mind. I will listen often. I will listen every day. I will listen to the same content many times. I will listen to the meaning. I will listen to hear the words and phrases. I will listen early in the morning. I will listen late at night.
U: I will understand the language. I will understand what I hear and read. If I can understand what I hear and read I will be able to speak and write. Until I can understand what I hear and read, I will not be able to speak and write well. But there is no hurry. I will work on understanding. I will read a lot and especially, listen a lot. I want to understand the meaning of English. I do not want to understand the rules of grammar.
E: Every day is a learning day. Every day the language is entering my brain. I enjoy reading and listening every day. I study with energy and enthusiasm. I study interesting things and enjoy the language. If I enjoy the language I will improve. Let the language enter my mind. There is no need to push myself. I am getting better every day.
N: I will never say that I am no good. When I read and listen I will tell myself “nice going”! I will learn naturally and easily. I will be nice to myself. I will not be nervous. If I make a mistake I will say “never mind”. If I cannot understand something I will say “never mind.” If I forget a word I will say “never mind.” If I have trouble saying what I want to say , “no problem”. I will continue.
T: I will Trust myself. I will be confident. Confident learners improve quickly. I will treat myself with respect. I will tell myself that I am doing well. I just need to keep going, no matter what. The more I listen and read using The Linguist, the more I will understand. The more words and phrases I save the more I will know. Soon I will be ready to speak and write well. I will take it easy. I know I will succeed. I will trust myself and trust The Linguist.
Have a look at the website.