Hello @userkhalid_jawed,
Ideally, it is recommended to start a new account with a subscription for two different company profiles. If you wish to do so, you can use this article for reference: Get started with QuickBooks Online.
However, you can start using class tracking if you wish to remain using one account for two company profiles. Let's turn this feature on so you can start utilizing it. To do so:
On top of that, here's an article you can read to learn more about class tracking: Get started with class tracking in QuickBooks Online.
In the same manner, I've also included this reference to get a better view of your business's financial status: Learn how to run basic reports in QuickBooks.
If there's anything else that I can help you with, please let me know by leaving any comments below. I'll be here to lend a hand.