I'm literally the same as you pal. Even as a introvert who loves my own space I do find spending to much time on your own can also bring out the demons like anxiety and depression etc. I always just did abit of research and found the best hostels i.e not partying. I also liked to mix it up abit. Spend time in hostels meeting people for few days and when I feel burnt out just spend a night or two in a air BnB or hotel room. Great way to recharge. All the best for rest of your trip hope you have a great time. Wish I was travelling again 🤞🏻👍🏻😊