do everything possible

From what I initially believe "I can do anything" to "Do anything I can", do everything possible and be a realist who remains positive. But still, I miss my old self, unfortunately I can not go back, everyone must have experienced something that changed themselves permanently and they can no longer return to their old self, you may also have experienced it. But the point is I'm going to try to be a new self with my creative spirit and ambition like in youth, I miss doing creative things rather than just measuring things with matter and numbers, and I'm ready to be that person again.