Ok, I hope this idea is in the candy crush saga area because I had trouble getting it in the right are, but now I think I got it. Thank you to @Spinnifix for telling me.
Every time you finish a milestone it gives you either five lives or half and hour worth of lollypops.
Whenever I have 5 lives already, I get the reward of 5 lives and when I only have 1 life, I always get the lollypop.
I think that there should be a choice on what you get, not get the one to don't want.
Who agrees?