Beginning to Create Hacks Using C++

Hello! I'm quite new to the forum, So I hope I won't be a problem to any of you ;P

But I had a pretty big question, which I'm sure has been asked hundreds of times.

How do I create hacks using C++?

Now, You must know that I am not a C++ Newbie, I know to code and have been doing it for very long.

Currently, I have created a hacking tool for a (not very well known) online game. PROBLEM IS, I have to use Cheat Engine to find each address every.time.I.relog into the game.
That's right! I'm using ReadProcessMemory and WriteProcessMemory.

Seeing as I cannot find another way, I have tried learning to 'Packet Send,' Which I dearly failed doing. I keep my hopes up to still try to learn Packet Sending or even how that works.

If anyone has ANY references on how to even begin to make some great hacking tools, that'd be great.
Finding cheat engine addresses each and every single time I log in is really not doing me any good.

Thanks!