Terminating A Specific Thread/TID Start Address in C++ DLL

Guys How would i terminate this specific thread by start address like : ntdll.dll!RtlReleaseSRWLockExclusive+0x1370 ??

#include <iostream>
#include <windows.h>
#include <TlHelp32.h>

enum THREADINFOCLASS
{
    ThreadQuerySetWin32StartAddress = 9,
};

typedef NTSTATUS(__stdcall * f_NtQueryInformationThread)(HANDLE, THREADINFOCLASS, void*, ULONG_PTR, ULONG_PTR*);

ULONG_PTR GetThreadStartAddress(HANDLE hThread)
{
    auto NtQueryInformationThread = reinterpret_cast<f_NtQueryInformationThread>(GetProcAddress(GetModuleHandleA("ntdll.dll"), "NtQueryInformationThread"));
    if (!NtQueryInformationThread)
        return 0;

    ULONG_PTR ulStartAddress = 0;
    NTSTATUS Ret = NtQueryInformationThread(hThread, ThreadQuerySetWin32StartAddress, &ulStartAddress, sizeof(ULONG_PTR), nullptr);

    if (Ret)
        return 0;

    return ulStartAddress;
}


bool TerminateThreadByStartaddress(ULONG_PTR StartAddress, DWORD dwProcId)
{
    HANDLE hSnap = CreateToolhelp32Snapshot(TH32CS_SNAPTHREAD, 0);
    if (!hSnap)
        return false;

    THREADENTRY32 TE32 = { 0 };
    TE32.dwSize = sizeof(THREADENTRY32);

    BOOL Ret = Thread32First(hSnap, &TE32);
    while (Ret)
    {
        if (TE32.th32OwnerProcessID == dwProcId)
        {
            HANDLE hTempThread = OpenThread(THREAD_ALL_ACCESS, FALSE, TE32.th32ThreadID);
            if (!hTempThread)
                continue;

            if (StartAddress == GetThreadStartAddress(hTempThread))
            {
                TerminateThread(hTempThread, 0);
                CloseHandle(hTempThread);
                CloseHandle(hSnap);
                return true;
            }
        }
        Ret = Thread32Next(hSnap, &TE32);
    }

    CloseHandle(hSnap);

    return false;
}

int main(){
    TerminateThreadByStartaddress(notepad.exe+0x187d0,7280);
    system("pause");
    return 0;
}

Guys How would i terminate this specific thread by start address like : ntdll.dll!RtlReleaseSRWLockExclusive+0x1370 ??

i don't know how to do it, what is wrong?? if someone can help me saying what should i learn, im new at programming!