Local DLL Hijacking?

So I am quite used to creating external cheats and started internal hacking. Not too compilicated. I will start releasing some stuff soon. But I have a question about making a private hack.

On other forums I have seen DLL hijacking into other applications such as Skype then loading a hack from there. Can I do it with csgo itself? I have attempted too but nothing has worked.

I have tested using message boxes and allocconsole but couldn't get them too show.

I presume either the DLL is being detached from the application before it can do anything. Or it's just not loading at all.

Does anyone know if I can do anything here? I asked in CSGO because this is the game I want to do this for. Do you know any DLL's that will work well?

Like an internal/external cheat that injects to a 32 bit process then it injects to csgo?

You can create a kernel cheat (helps a lot against vac detection)