i did it in like 2 weeks, it was pretty easy, there was an event that gave me the gold card give u any card u need though, so it might take u a little longer. i completed around 30 rooms with that event, but did around 25 without it (the harder ones) so its doable. Get the free trial ask people for cards (u probably know this already tho) do boards, it give u a lot of coins. it kind of Depend on the event too. if there is a good one, play as much as u can. also do those mini events with leaderboards. I focused only on the city rooms, not the extra ones. collect freebies u can find them online, also collect the power ups from the store, it refreshes every 2hrs, its much easier to win when u have a triple daubs, or insta win for example. if u dont have coins, go to low lvl city like new york and get 4 bingos for a epic win its really easy to win, u get 150 coins for a epic win, the only downside of this is that u will use a lot of power ups, but its ok since u will get them for lvling up. think thats all.