They take really long. What I do find profitable about week games is how fun they can be over the days. We are all busy, so posting may not be great for us. All I needed to do is play the challenges and that is it. I also realized that if any alliances are going to be made. For a fasting, do them in alliances of 3 (or 4 for a backup just in case one is evicted). For a frookies, probably 2 or 3 would be a nice count. For week games, you should try making only 1 ally. I did that only to chain out for my allies. If my allies don't backstab me, I would be willing to be out just for them to make it.
Backstabbing is not cool. If it is like you just cannot get into the game, then that is an exception (like when my computer crashed). If nobody backstabs me, I would be willing to sacrifice myself for their good.
I still remember a few times where I have gotten Power of Veto. Those times were when I had no alliances. All I did was appreciate appreciate appreciate. I never gave a single negative to any message. I have gotten power of veto 5 times in one game. I still have not played a single rookies game, but I want to work with you here.