Hello.  A new mapper ! Welcome.
About your mappings. 
You followed the traces accurate.
Please read this wiki how to tag highways. 
About tagging of highways:
Please read and follow the tagging rules on this linked document.
Decision tree, which tag to be used for roads
https://drive.google.com/file/d/1S48CEVi3yiAYWhIJu57jtLyv0ZVUbGwJ/view?usp=share_link
https://wiki.openstreetmap.org/wiki/East_Africa_Tagging_Guidelines
As you see, you tagged the roads incorrect. Track instead of residential in roads lined with buildings. ( I corrected them)
Best regards
