Traveling through another world, I can see the experience bar

[Cthulhu + Experience Bar + Caution Flow + Brain Online] Lu Yuan traveled through time. No system, no panel. There is only a line of small gray characters in the corner of the field of vision, which indicates that something will go up. [Imperial Language: +1] [Medicine: +0.1] It sounds like this should be enough for him to survive. Until he saw the port city sinking to the bottom of the sea. Until he saw a giant tree of flesh and blood bursting out of the ground, with hundreds of heads hanging on the tree crown muttering "Mother". Until he saw the everlasting darkness at the top of the tall tower. Everyone dares to walk only one narrow path. Specialization is the same, and you can survive for the rest of your life. The experience bar didn't give him this option. It told him: You can learn them all. But in such a world - can Lu Yuan really make it to the end?