how to make a trainer

i wanna start coding that is my wish since ive been a kid does anyone know ho can i start learning i wanna start moding call of duty

First learn a programming language, then learn how to use tools like Cheat Engine (memory editing and/or debugging/reverse engineering) and then combine both areas in the last step. Take enough patience and start with smaller steps.

Possible programming languages:

• Objective C / C
• C++
• Python
• (Delphi)

Other languages:

Alright bro found a page thats teaching me hoe to use cheat engine and learning hex bin and decimals as the first steps to learn c++ ect