To Become the Strongest!

Zyro died because of an illness that made him suffer for years. As he thought that it was the end of him, he suddenly came to a realization that he was in another world. And he needs to be strong to survive, luckily for him, he had something special that could help him become one. All he need is to work hard and he can become stronger. <●> I just re-write this novel. Don't use your powerstones but if you want feel free to do so but I would really appreaciate it if you can give me some advices to help me improve my story. I'm just a new writer so I could really use some help.