Is your proof from the probes we've sent all across the galaxy?
That's my question to you. Where is the evidence for your created energy?
You can send probes out or figure it out. You've created things in your life and it required energy. You can measure it to some extent, but you may not be able to measure it all.
For example, the sun requires great energy as it puts out great energy. Where did all that energy come from in a natural universe?
Look at all the stars and the energy they radiate. One needs a lot of energy. E=mc2 gives us GR. It means any matter requires energy to produce it.
Friedmann was explain how the expanding universe came to be from a beginning with his equations using GR, but he didn't explain where the energy came from.
The best explanation is a supernatural God. He is the dark energy.