It is possible and good to learn running script from Mi Fei's Tiaoxi poems. However, judging from the works you copied, it's as different as a gourd painting gourd ladle. Read the post carefully when posting. You should be familiar with the length, size, thickness and direction of each stroke of each word, as well as the positional relationship and proportion with other strokes. This is called reading posts, and then you should start writing. After writing a word, compare it with the original word on the copybook, find out the gap, and then correct it until you write an image. After a period of training, a single word is proficient, and then the whole article is written, as well as the rules between notes, the echo relationship between words and so on. You can find the video written by Mr. Cao Baolin.
In addition, from the picture, I haven't worked hard on regular script before, so I wrote running script directly, so it's not good to use pen and thread. Practice regular script first if you have time.