I accidentally got a two-way foil in my second level civilization

Technology+Disaster+Interstellar+Technology Tree
In the year 2050 AD, the sun is affected by unknown factors and a helium flash is about to erupt!
Is the Earth in imminent danger?
It doesn't matter, I will take action!
Is the Trisolaran galaxy and Proxima Centauri civilization about to invade?
It doesn't matter, I will take action!
Dark universe, with disputes among higher civilizations on the rise?
It doesn't matter, I will take action!
see tee
Starting from controllable nuclear fusion, the protagonist Lv Yongchang opens the interstellar era of human civilization!
Aerospace plane, space elevator, energy weapon, antimatter preparation, large
Two dimensional fragments (two-dimensional foil)... unified theory, [curvature navigation]
Methane ocean, mysterious species!
Liquid ammonia planet, body fusion!!
Dimension creatures, dimension reduction strike!!!
What mysteries are worth exploring in the endless universe?
How should human civilization handle itself by putting away the disputes of higher civilizations?!