There are a number of resources to help you with assignments. The Library provides excellent online advice to help you with your assignments.
You will have many questions about your specific course and there are plenty of people in your department who will be able to help you out.
The Library runs workshops in information resources, academic skills and reference management software.
The Centre for Academic English is a special resource for international Imperial students who want to improve their academic writing and communication skills.
If you need additional support on any aspect of adapting to life at Imperial, there are plenty of people you can ask.