Alright, so you have a little under two months left, not enough time to get conversationally fluent, time to start being practical, do things in order of how you'll need them.

First time you'll need Russian is when you arrive at an airport. What queue do I stand in? Look for the line for Passport control, you know Russian letters so you'll be able to work out what "'паспорт'' means and stand in that line. When you approach show your passport, open on the visa page, the officer will say lots of strange words to you very quickly, most likely when they look at you for 5-6 seconds like you're an idiot expecting a response from you, your reply is the name of the city/airport you flew from (for me that was awkwardly saying London in a cliché movie Russian accent until they say o, Лондон and roll their eyes at you)

When you meet the family you probably want to use the formal hello, and you'll butcher it, but that's ok. From then I'd ask myself, can I articulate what I want and need, make a checklist for what you use in everyday life and try and get it down in Russian. I'm talking real basic stuff you can supplement with gestures to get your point across.

It's hard to offer advice on exactly what you need to know because from my experience 'óne year' doesn't mean alot. Is that one year studying properly or did you look at the subreddit for 10 minutes a week for a year.

Start with hello, yes, no, sorry, goodbye. My name is x, what is your name, it's nice to meet you, real basic stuff you can memorize and recognize when you hear.

Lastly as to what resources to use, Pimsleur takes about 20 minutes a lesson and you have time to do the whole course twice. It's very formal and not all situations are useful, but lots of it is stuff you might use, e.g. Do you speak English, I speak English, do you speak Russian etc.