if you hold your mouse cursor over the little green dot at the bottom of your wallet it wil tell you how much "weight" your coins have so far. with only a small amount and such a high network weight it might take awhile to build up enough weight on your coins to find a block but you will eventually and it will be BIG when it happens... so keep on staking
With BIG he means on average 10000% of what you staked if taken over a year.
or however many days worth of that 10,000% it takes till you find a block I can't see 25 coins making it to the 16 day limit.
and what happens if a batch of coins reach's past 16 days? does it start over? or does it keep the 16 days worth of weight until it finds a block?