I went through something similar after a long relationship ended. What helped me wasn’t “find a hobby” but a few small, repeatable things:

• Treat being alone as a skill you practice, not a verdict on your life – e.g. 20–30 minutes a day you choose to do something solo (walk, café, book) on purpose. Over time your brain learns “alone” can also be calm, not just panic. • Give weekends a thin structure: one out‑of‑the‑house thing, one tiny “future me” thing (10 minutes learning/building something), and the rest whatever. It stops the 60 hours from feeling like an empty void. • Have one low‑effort chat outlet (small group / one friend / Discord) just for “here’s what I cooked / fixed today” so that part of your brain doesn’t feel completely unheard.

You don’t have to learn to love being alone right now. Short‑term goal can just be “make the next few months tolerable while my system adjusts”, and that’s completely reasonable.