Command Controls for RTS + Coding Devs

Yay for me, I've been working for a few months on learning the essence of Game Development. Yet at the moment I'm struggling to learn the essential commands for creating a top-down RTS Game. At the moment, I'm having issues attaching commands to the instance of an object (which may be related to an update I had to Unity, as I've successfully used these commands before???).

So I have two questions! I was wondering if someone was willing to assist with the understanding and correction of some minor issues I have. Probably only a minute or so of browsing per problem, however while inexperienced and self-taught, a human explanation would generally benefit.

I'd post code here for perusal, however it pertains to several different pages of called variables. So that could be problematic! Or at least a wall of text!

Secondarily;

This game I intend to take further than a hobby in the near future, while an entrepreneur, I'm less experienced in coding than I am in design! While I have used Freelancer and such before in the past, I was wondering if anyone had any good directions to look towards for hiring gamedevs for commission based and time based projects.

If anyone reading this is interested, feel free to reach out here, or on my discord Aiivay#4939 if interested. <3