Working with process memory how to work with dynamic addresses?

Question

C++ / C#

Hello, there is an address I need when I restart the game, it constantly changes. Tell me how to make it permanent or for a new one to find it?
Game wow, let's say an address that contains the character's xp. Explain or give a link where you can read about it.
this is how I read the data I need ReadProcessMemory(process, (LPCVOID)(0x2C72A538), &Health, 16, NULL); everything works fine when restarting the game the address 0x2C72A538 changes.

Answer 1

Read about virtual addresses and you will be happy.
The OS can place the process where it likes and allocate an arbitrary virtual address space to it.

Answer 2

If you need something quick and easy, without going into disassemblers and reverse engineering, then follow the Cheat Engine tutorial . There it is excellent and simply told how to search for such addresses.
And then write your own scanner for this case, if necessary.