Balance thing I have always had bit of struggle with myself.
For some its avoidance issue, some of people are more easily prone to addictive behaviors.
I for myself understand the root causes of this.
I have lot of health and personal challenges in my last 42 years of life.
We all want things that feel good, that give us escape.
I find myself sometimes want to create not dealing with real life relationships and things because often there is something unpleasant and unrewarding about them.
I don't have the answers for this myself but I do know I tend to ignore or isolate from rl friends or my boyfriend when I am not feeling well and just don't want to interact with him because its just plain unpleasant sometimes.
I give any grumpifingly producing creation day over listening or doing something unpleasant in real life.
It very easy to get caught up in that and want to forget the rest.
My friend has schedule she is still online but I know she follows a schedule when she does things to maintain balance like sleeping, tea time, laundry,etc in real life.
I haven't entirely figured it out for myself except take time outs to do other things or recognize what is I am avoiding when I spend 60 hours non stop creating something that not many will see for Second Life.
I know there is cause and effect if I stay up for 4 days without sleeping creating things.
Now I try not to do that but still sometimes have projects occasional I work nonstop for 20 hours at time.
I use spend every dime almost except rent on buying land.
Now I don't do that, I have switched to making textures and only allowing self to upload what is in my stipend.