Do not try to rebuild your workflow from scratch. Use the trial to import your current data. ClickUp supports imports from Trello, Asana, Jira, Monday.com, and Excel. Seeing your actual data inside ClickUp is the best way to gauge usability.
ClickUp actually has a (Free Forever), plus free trials of their higher-tier plans (Unlimited, Business, Enterprise). clickup free trial
When you initiate a trial of the Business or Enterprise plans, the handcuffs come off. This allows you to stress-test the features that usually sit behind a paywall. Do not try to rebuild your workflow from scratch