I feel with you. I was hesitating what to say to you but I can tell you a story about how it all happened to me.
It took about 6 month for me before I even understood what had happened to me. It took even longer before I accepted my condition. I had absolutely no energy whatsoever. I had trouble moving. This lead me to believe it was physical but it turned out to be a depression.
Before this (about 8 years ago) I had all the energy I wanted. I could work for more than 32 hours straight - no problem. Skipping a night's sleep - no problem. I couldn't understand why people went home after work in the evening. There was so much to do!
This made me accustomed to the constant positive energy flow and I started new projects constantly and finishing others. I was juggling about 10 major projects at any given time (including personal, business, hobby, education, etc.)
One day I woke up and couldn't move. I was paralyzed. The only thing I could move was my eyes and I looked up at the ceiling and I remember feeling really sick and empty. The paralysis slowly went away over the next few hours.
That was the first major sign. And I arrogantly ignored it.
As my energy started to slowly return I just went on with business as usual thinking no more of it. It wasn't until a few months later that I totally broke down.
In retrospect there were very many signs with increasing amplification. As if my body was telling me to slow down and not waste my energy.
From there to here is about 8 years of soul-searching and learning to live with low energy boundaries.
For better or worse if you really hit the bottom you will never regain your energy levels as they were before. You can choose if you want to see this as a blessing or a curse. You will probably see it both ways over time and starting off seeing it as a curse.
What is my point. Well. It is a complex topic and there is not only one solution. But the solution has to be about YOU. Only you know what is important enough to spending your energy on.
Ok, that was a long story to give you some background. Now the advice you asked for:
- Embrace things that gives you joy and energy while avoid doing things that will drain you of energy.
If you can master this you will have more than enough energy to do what you WANT to do. However it is really hard to do this. I mean REALLY hard. It is about questioning every aspect of your life. From what you eat, whom you talk to, where you live, what you work with, do you work on fulfilling your dreams or someone else's, etc? You have to really identify what takes you energy.
Leave no stone unturned.
My best wishes,