First watch carefully, and understand the codes than try to make it yourself own. Do not copy or paste codes. Write codes manually always.
Use google when you are struggle for some topics. Coding means %70 searching on google. You need to learn how to search on google as well. Other developers are also may struggle on the same topics. So you can easily find the answers on stackoverflow, trailhead forums, github issues or other useful resources.
https://www.linkedin.com/in/selcukgoktas/
https://www.youtube.com/watch?v=d0yGdNEWdn0&t=531s
