Design my 4-day solo challenge

My parents are going to be out for 3–4 days soon. Usually when they’re away, I default to binge-eating junk food, movie marathons, long gaming sessions, or just generally overdoing things. This time is different because my exams are about 10 days after that period. It’s a crucial phase. I genuinely want to study properly (I’m planning to use study-stream/accountability servers to stay consistent) and prove to myself that I can be disciplined even when no one’s watching. I’ve done 2–3 hour gaming runs, full series binges, and junk food sessions. I come from a pretty restrictive, typical Indian family, so even having pizza felt like peak fun to me. I once made a huge family pack of Maggi and had it all by myself. It was fun — but I’ve already experienced that version of “freedom.” At the same time, I don’t want these days to feel robotic or boring. I’ll have around ₹2000 for 3–4 days (and some food at home to finish), so the budget isn’t huge, but it’s enough to do something interesting. I’m not looking for wild or irresponsible ideas — just creative, slightly experimental challenges.