One task works. How do I run several at once?

Give each parallel task its own browser session. Your program controls how many run at the same time and releases each slot when its task finishes.

1. Turn the single-task workflow into a repeatable operation that creates its own Session each time it runs.
2. Limit the number of simultaneous tasks using the project’s concurrency limit and its existing active sessions.
3. Record each result, try to close the task’s session after success or failure, then start the next task.

When login is required, use a separate Context for each account and use the same Context in read-write mode sequentially. If several tasks modify the same record on a website, your program also needs to coordinate their order.