I think my account is set up for a ltd company but I am a sole trader. How do I change it ?

Hi there, @azharhakeemhussa.

I can walk you through on how you can change the industry type of your company in QuickBooks Online.

Changing the industry type of your company can be done from the Accounts and Settings section. Please follow these steps below to accomplish this goal:

1. Click on the Gear icon at the top.
2. Under Your Company choose Accounts and Settings.
3. Refer to the Company tab.
4. Tick on the pencil icon on the left section of the company type. 
5. From the Tax form box select Sole proprietor and enter and enter it in the Industry box.
6. Hit on Save.

You can also visit this link I've attached that can help you manage your business as a Sole Trader: How to Start Your Own Company – Sole Trader.

I'll be right here to assist you if you have further questions. Thanks for coming, and stay safe!