Break large tasks into smaller chunks, and pick one that you can do now. For example, if you have a 10-page research paper due, consider setting a goal to finish two pages per day.
Set goals: Set goals and make a plan. Prioritize tasks with set deadlines.
Eliminate distractions: Find a distraction-free zone
Reward yourself: Reward yourself for small wins.
Practice mindfulness: Practice mindfulness and relaxation techniques.