if you have not already invested in SD do you think one should do it or invest in LIR instead?
it depends what you want from your investment. If you want a secure steady income go for SD, if you want a higher income but are happy to risk the price falling then go for LIR. I have invested in both to diversify. So far I got around 10% from SD over a number of months and I'm down by 20% on LIR, but I expect LIR to increase soon and get 50% back, but that is not guaranteed.
If you have a lot of money and can't afford to lose it than SD is the safer bet (but there is still some element if risk there too as this is crypto)
how much do you actually earn on SD if you invest like i have 1btc right now and want to invest in it but not sure how it works can you pls guide me? daily profit if possible
You can't be sure how much you will earn (or if you will earn) since it purely dependable on users activity. If they win the you lose and if you lose then you win. You can expect profits in the long run since it is expected for the house to win due to the house edge but still you can't be sure. If you wanna do that though be advised that you should see it as a long term investment since the profits accumulate over time and not over night.
If somebody takes a big win when you bankroll your cash it could take a while to get your money back (you could be a few % down, but that would be unlucky) - however you can drip feed in 0.1 per day/week to reduce any possible impact. For me I earned about 10-15% over 6-7 months, but it depends upon your percentage of bankroll and how lucky the dice players are, and as LiQuidx says, the number of people playing. If SD is not stable, then there is no income. But in my view its certainly worth a go, SD have been going for a while and didn't run off with anybodies money, or lose all money to hackers yet - so they must be doing something right =D.
10% for 7 months? like 1btc would be 1.1 after 7 months? well its actually better profit than a bank..