That guide seems like just teaching you to build your own auto clicker make some with move than one movement.
Simba scripts easier to learn, because you have one compiler and thats all you need. Its has a medium level computer vision capability which makes it really good and can find most stuff you want.
If you want to make your own home made scripts, its much less hassel and safer than public script (although its already pretty safe). Because you are the only one using it, so you don't have to worry about supporting multiplpayers, but before you began to do so, you need to understand how to make a safer script.
By that I mean just no straight move mouse and click, you need to learn about antibans aswell... etc and thats the same with making ANY bot, if you don't have antibans and you are using looping procedures, your chance of getting banned rises substantially.