Yup. Starting is the hardest part. It's easy to be overwhelmed by the whole thing you have to do. It's much easier to say, "Okay I'm going to open the document and title it. That's it". Often once you do that its much easier to do the next step.
The other piece of advice I'd give is break tasks down. Write a paper is hard. Open a document is easy. Title the document is easy. Write a thesis is harder than those two but easier than writing an entire paper. Writing the first paragraph based on your thesis statement is easier than writing a paper.
If you have things broken down into steps its much easier to have a clear step by step plan on how to move forward.