What can I do with this 9$ worth of Bitcoin Cash to make it grow in a short time?
It can't grow in a short time, but if you belive your $9 Bitcoin Cash can go up someday,just hodl it.

Should I trade cryptocurrencies?
You can trade in cryptocurrencies,But you needto learn how to trade correctly so that you don't lose money when trading cryptocurrencies.
And I don't think 9$ will satisfy you to trade cryptocurrencies.

How about trading bots?
If you already know about trading bots, that is not a bad thing. But if you don't know anything about trading bots, it's better not to ever try trading bots. better , learn and understand first before acting