I think you fill out the tourist visa application and pay the fee.

Hey, I’ve been through this process too! You’ll need to apply online through the official government website- www.gov.uk , just make sure you have all the necessary documents ready.

When I applied for a UK tourist visa, I found the process pretty smooth. Start with the application form online, upload your supporting documents, and then follow the steps to book your appointment. It’s a step-by-step approach

from what I went through, applying for a UK tourist visa is very manageable. You begin online, providing your details and documents, and then proceed to your appointment at the visa center. Just plan ahead, and you're good to go!