In Singapore, there is a very cool fintech startup called TradeHero that allows us to practise trading on stocks using virtual cash. Is there a software for us to trade virtually for bitcoin?

https://www.coindesk.com/price/

 ->This is a pretty cool website that gives real time stats about bitcoin price.

Please advice for the following question. Thanks:)

I would like to ask which hardware gives the best performance to unlock blocks?
https://www.bitcoinmining.com/bitcoin-mining-hardware/

1)AntMiner U2
 
2 Gh/s
1.0 W/Gh
0.8 ounces
Yes
$49.66

2)BPMC Red Fury USB
 
2.5 Gh/s
0.96 W/Gh
1.6 ounces
Yes
$44.99

3)GekkoScience
 
9.5 Gh/s
0.33 W/Gh
0.8 ounces
Yes
$49.97

Help me choose please...

P.S I heard Asics ones are not bad also

You could also join a mining pool as it helps you to pool resources together as beginner miners usually takes years to solve a block.
Here are a few mining pools you can join:

https://www.bitcoinmining.com/bitcoin-mining-pools/

As I am new into bitcoin, may I know how the money supply of bitcoin is controlled since it has no central repository and it is encrypted?

good luck guys. the market is quite satuarated