Like any Chinese novel, MC's got that hero complex, falls for any cute girl he sees, and acts like a kid who don't know jack about the world (let's say not too bright). And them side characters, they're even worse. Kidnaps the wife (total cliché), That "divine child" (to be one, you gotta be smart), going alone... mmm.
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LIKEAs for not knowing anything about the world, this has its explanations. First, the developed world is not his world. Technically he doesn't know anything about 'that' world. But maybe you say that because he doesn't look 'mature age' and it's normal, he never reached 'mature age' before he reincarnated. It is a giant world, where people are hundreds of thousands or millions of years old (his world), his '32 years' in that place is considered 'children' in several aspects, the age to marry there is 25 years old (majority age) and most of his peers of the same 'era' as him, are between 100 and 500 to 1,000 years old.
Not that the MC is bad, give it a point to make it like that. You have to improve your writing style. For example, why does he have so many enemies? Go into details. I would recommend reading more novels, like 'Journey of the Fate Destroying' or 'Tyranny of Steel,' etc.
Okay, I understand what you mean. Thank you very much for your feedback and for your advice, I will try to follow them to improve my writing, thank you!