About staking, I am staking with 50k coins for 4 day at 24 hours, but till now no stakes. How long will it take for staking? any experience?
You'll have to build up weight which happens by itself, it takes 30 days to hit your full potential.
Does that mean you can't get any stakes during that time? No, you can still get stakes during that time.
However with 50k coins you'll need a little more then 4 days to get your first stake, it's all automatic though so just let them sit and build up weight.