Need help to add 1 skill point

[pevok]

Hello sir, I'm trying to make a cheat engine script to add one skill point to Serious Sam 4: Siberian Mayhem GOG 1.07 version same as your trainer. So I've made the following script:

Code:

[ENABLE]

aobscanmodule(addskillpoint,SamSM.exe,83 80 00 1A 00 00 01)
alloc(newmem,$1000,addskillpoint)

label(code)
label(return)

newmem:

code:
  add [rax+1A00],01
  mov r9d,[rax+1A00]
  jmp return

addskillpoint:
  jmp newmem
  nop 2
return:
registersymbol(addskillpoint)

[DISABLE]

addskillpoint:
  db 83 80 00 1A 00 00 01

unregistersymbol(addskillpoint)
dealloc(newmem)

Unfortunately, it's not working.

Can you share your script or guide me to learn cheat engine scripting please? I'm a noob and at the initial learning stage. I'll be thankful if you provide your helping hand