In case you want to post for a longer time then power up 5-10 HIVE in your Hive Keychain. That way you will have always enough RC ;) This will be well worth it on the long run if your posts get recognized.

If you want to get to Bronze 1 / Silver 3 then start to work on this on the 3rd-4th day of the new season.
Why then?
The last days of the season have insane renting costs.
In the first days of the season a lot of players from the higher leagues fall down to the Bronze 3/Silver 1 leagues, so it is very hard to do even the daily quests.
The renting prices are also usually normalizing at that point, and many of the rents I had were not cancelled at the end of the last season (I hope the same will be true this time around as well).

Good luck on your journey.