The simple answer is that you don't need to choose. You can divide your time between conversation and grammar. Let your desire to communicate drive your studies, soon you will want to know why things are said a certain way and that curiosity will motivate you to look at the grammar. Here is a good online course here to help get you started: http://learnrussian.rt.com Enjoy learning the Russian language! :-)

I used the website https://www.lingq.com/academy/ I have been using this site for about 4 months and now, I can read some basic Russian poems by Pushkin. I can have a basic conversation with natives. There is know correct way to learn a language. You just have to workout what is the best way for you. you.

اول بايد از الفبا شروع كنيد، بعد ضماير، بعد افعال، بعد اشكال مختلف اسم ها در جملات!

I could recommend you this website project-modelino.com. Check this out! Clicking this link you can find a great method of learning any language!

At first, learn russian letters. Then try to learn simple words. Write me and i help you