Deliverect can be a difficult environment for someone who isn't a self-starter and excited about executing projects, who struggles with the fast-pace or who expects their manager to tell them exactly what to do.
It's also important that as an employee you're open with your manager and team, should you need help with managing or prioritising your workload for example. There is always support available, but if you don't ask for it or flag your situation with someone, you might end up feeling alone.