Hello Nadia,
my native language is russian as well, my second language is english and my third language is german.
i am teaching my two children(1,5 and 3,5) 3 languages. over time i tryed this and that and i know by now that they are not going to be confused, they are going to be fine and will speak  3 languages.
 i tryed a couple diferent things but lately i have doen my reading program this way:
     when i flash the cards i do it in 3 dif, rooms, russian in the bedroom, english in the office and german in the livingroom. with a little break in between.
     when i use LR i teach mostly in english, then i say ,now we are going to read in russian, and go on to the russian presintations, and if they still want some more i go on to german.
   when i speak to them i use mostly russian but switch to english some times.
   if i teach them about something, i say it in english, say ,this is a dog(then i say the word dog in russian) and then in eglish again. and i resently started to play a game like saying words in 3 languages.if we talk about the tree or something then i just say it in english language , then i say it in russian, and then i add that in german it sounds like that..
i do not use german as much as i wanted, but i use LR, i have some books and dvds we sing lots of german songs and i formed a little group for parents who wants to teach german to their child and get together 2 times a month, use flash cards and games. we try to speak as much german as possible to the kids. and sometimes i say something to them in german, then shortly trunslate in eglish  and again in german.
do not worry, she is not going to be confused,she will figure it out faster then you think:)
my son is fluint in both languages perfectly, and my daughter can say many words in two languages.
even if you think you dont have a perfect way she will pick up with ease as many languages as youll give her:-)
Inessa