1.Click on the blue icon. 2. Then scroll down until you find DTV. Open that. 3. User manual 4. Create an account.

You've got 14 days to submit the application. You can go in and out whilst you gather documents. Once step 4 of the application is completed you submit. It will ask you to select payment method. Then you'll receive an email with your application number and the process begins.

On the official Thai visa application website there is a user menu. Go through that step by step and it breaks down exactly what you need.

If your father has his own business it maybe better he effectively "employs" you.

There is an excellent video on YouTube by Daphne van Velsen who shared her experience which is very easy to understand.

In step 3 there is a question regarding annual income.

You can also create a Remote Worker Contract (plenty of online templates) which you need.

You don't mention if you are applying via the Soft or Workation option?