What Should I Do If I'm Still a Loser After Traveling Through Time?

The story of an ordinary person who goes to another world to continue being an ordinary person who cannot help himself. Is there a beautiful girl from another world who wants to take me through time? Okay, it's time for me to be the protagonist! Going to the oriental fantasy world? Well, cultivating immortals is the best. I directly care about the universe in my hands, and all transformations come from my body! I can't practice? It's okay, my destiny must have been arranged for me. It's either a golden finger, a supreme bloodline, a human holy body, or a powerful layout. Stay safe and lie down! Why can't you practice cultivation? Huh, what I want is that you despise me, I seize the opportunity to develop in a wretched way, and you are all my qualifications to reach the top in the end! Jie Jie Jie! And Western fantasy civilization? Well, look at me being inclusive and finding new ways! I can't learn fantasy? Is there anyone who is engaged in weapon refining? If not, I will push it with some magic modified Gundam! This... It's too expensive to make weapons, I just hate the lack of financial resources. Why am I still so useless after struggling for so long? I've already traveled through time, can't you just let me go!