How can I overcome severe procrastination on my senior history thesis when I have already missed two internal advisor deadlines?

First off, take a deep breath because you are not alone in this, and you can absolutely turn this around. The short answer is to stop trying to write the thesis and start treating it like a messy, low-stakes puzzle instead of a monumental masterpiece. You are currently stuck in a paralysis loop where the fear of doing it wrong is stronger than the desire to do it right, which is incredibly common among high-achieving seniors. It’s okay to admit that the pressure has built up, but remember that a finished, imperfect draft is infinitely more valuable than a perfect one that never exists. Your advisor would likely prefer seeing a rough, honest attempt over silence, so let’s shift your mindset from "I must produce brilliance" to "I just need to produce words." Think of your thesis not as a single, massive mountain you have to climb in one go, but as a series of tiny, almost laughably small steps. Since strict word counts and timers haven’t worked, try the "ugly first draft" approach. Give yourself permission to write the worst possible version of your introduction. Tell yourself you are only allowed to write nonsense or bullet points for fifteen minutes. Often, the hardest part is simply breaking the seal on the blank page. Once you have some text, even if it’s clunky, you can edit it later. Editing is much less intimidating than creating from scratch. Try to reconnect with your advisor honestly; send a brief email admitting you’ve been overwhelmed and asking for a quick fifteen-minute chat to reset expectations. Most advisors appreciate honesty and want to help you cross the finish line, not punish you for struggling. You have already survived four years of college, which proves you have the resilience to handle this final hurdle. The anxiety you feel is a sign that you care about your work, but you need to channel that energy into action rather than avoidance. Start with just one paragraph, or even one sentence, today. Do not worry about citations, flow, or perfection right now. Just get your thoughts out of your head and onto the screen. You have the knowledge and the skills; you just need to bypass the mental block by lowering the stakes for yourself. Trust that you can do this, one small, manageable step at a time.