As i think, the most effective way to begin learning russian is to start listening the russian alphabet, the sounds of consonants and vowels in order to master it and then to continue to listen some podcasts during several months in order to build a language core in a process of listening. At the same time you can download some manual and little by little learn grammar constructions, so as you have a language core the grammar will be easier for you. Best regards, Eugene.

First memorise common phrases. Such as greetings, asking someone's name and etc. And practice them. Podcasts and simple dialogs will help you a lot. Send me a message that topics of Russian culture you want to know about and I'll try to help.

first of all, start reading russian books, then start to learn slang

First of all you should be prepared for difficulties-as the Russian language has many exclusions and many rules of which ending to use in this or that word. You may look for the website, where you can hear Russian sounds-so that to get an idea of its pronunciation. And I think that it will be better to start with vocabulary...first to learn words and then to start buikding sentences