grammar

Writing
i should learn to write properly (it's the ony way to become a writer, so they say)

• It's usually not wrong to end a sentence in a preposition http://www.grammartips.homestead.com/prepositions1.htmlhttp://grammar.uoregon.edu/phrases/prepositionalP.html

the comma

http://owl.english.purdue.edu/handouts/grammar/g_comma.html
http://www.correctpunctuation.co.uk