I am a mix of being an extrovert and introvert, happy to go out but more than happy to stay at home garden and listen to some metal or grunge (if you haven't listen to Alice in Chains, Dirt is peak), the best alternative is camping or hiking in the bush. If i am not at school or at training i am sleeping and just chilling with my friends at home talking about history or the wild and dreams to travel. So anything to avoid studying.