how to make? Tower defense game question

Hello guys! this is my first post i know that you can't ask what the script would have done for you, but it took me 5.6 days but I couldn't even do something, how can I make an NPC that will walk from one point to another? can you explain it in a simple way, I don't really know scripts, I started to study them and 7 days have passed, I think that in 7 days I will not become a programmer. and is it possible that he walked (nps) from one block to another

If you're just starting off programming, i suggest not starting with pathfinding let alone a tower defense game. start small with basics. but if you really want to learn pathfinding you can study up on pathfindingservice on the links below.

https://developer.roblox.com/en-us/api-reference/class/PathfindingService https://developer.roblox.com/en-us/articles/Pathfinding

there are also plenty of guides introducing pathfinding on youtube