Life has a way of letting us know what we need to do and how to be in this world. Have to say that I have shared a number of places with friends. Thought it would be cheaper and it was but it never ended well. Lost a couple of really good friends.

I have lived on my own for quite a few years now. If I am on my own for too many days in a row it is not good for my mental health. So I suppose there is a compromise of making sure that I make plans to have contact in the real world. Having distractions like going to the library and planning walks in the day just to get out of the house. Volunteering and some form of hobbies. Having structure in your days and maintaining a support system is also something to be mindful of.

It is good that you are thinking about possibilities. Maybe start saving for the eventuality of moving out (regardless of it being on your own or not). Asking your family what might be suitable options for you as they would know what you like and don't manage so well with. Life will unfold as it tends to do.