Why can't I stop procrastinating?

Because you are trying to fix the symptom instead of the cause. Procrastination is almost always one of three things: emotional avoidance (the task triggers anxiety or fear of failure), executive dysfunction (difficulty initiating tasks often linked to ADHD, depression, or chronic stress), or structural mismatch (your environment and task design are working against motivation). Identify which one applies to you the solution changes significantly depending on the root cause.