Rebirth in Another World, Reversing Life from Scratch

Am I reborn? This is a world of magic and swords! I should be the savior chosen by God! Is this my chance to show off my skills? It's just starting from a child and going through a second rebirth. What about the system? What about magic? What about talent? Why do you have nothing and you still have to be taken everywhere? I thought I could live a leisurely life as an adventurer no matter how bad things got, but I didn't expect to be caught up in one big event after another. And was told that the world was about to be destroyed! Wait, no, my second life! We must find a way to solve all this!