Constant Flickering of ExtTextOut text, and after a set amount of time the text reverts to the default font

This is my first post, so please forgive any mistakes.

I am working with win32 c++, and I have a basic window that will give the date and time (including seconds), and update accordingly. Additionally, I've made it so the text will change position a slight amount according to the mouse position (almost like this demo, https://css-tricks.com/animate-a-container-on-mouse-over-using-perspective-and-transform/ but it moves x and y, not z according to mouse position). Whenever I run my code, however, I get this flickering on my text where it goes white for an instant then appears on the screen again. I think this is because I'm painting certain pixels twice, but I can't figure out how to fix it. Furthermore, after a certain amount of time (say 1-2 minutes), my font on my text will revert to the default font. During debug I can see the process memory continuously increases to 20, then the font changes to the default and it goes down again. Any ideas? I think somewhere in this section I messed up:

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
 {


switch (message)
{
case WM_COMMAND:
    {
        int wmId = LOWORD(wParam);
        // Parse the menu selections:
        switch (wmId)
        {
        case IDM_ABOUT:
            DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
            break;
        case IDM_EXIT:
            DestroyWindow(hWnd);
            break;
        default:
            return DefWindowProc(hWnd, message, wParam, lParam);
        }
    }
    break;
  #define SECOND_TIMER 2
case WM_TIMER:
    if (wParam == SECOND_TIMER)
    {
        InvalidateRect(hWnd, NULL, TRUE); // invalidate whole window
    }
    break;
//case WM_ERASEBKGND:
  //  return 1;

case WM_PAINT:
    {
        PAINTSTRUCT ps;
        HDC hdc = BeginPaint(hWnd, &ps);

        POINT point;
        GetCursorPos(&point);
        ScreenToClient(hWnd, &point);
        ClickAnim(point.x, point.y, hdc);

        SetTimer(hWnd, SECOND_TIMER, SECOND_TIMER, NULL);

        HFONT hFont = CreateFont(70, 30, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_DEFAULT_PRECIS,
            CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY, VARIABLE_PITCH, TEXT("Segoe UI Light"));
        SelectObject(hdc, hFont);

        TCHAR time[100];
        TCHAR date[100];
        SYSTEMTIME localTime;
        GetLocalTime(&localTime);
        wsprintfW(time, L"%.2u:%.2u:%.2u", localTime.wHour, localTime.wMinute, localTime.wSecond);
        switch (localTime.wMonth)
        {
            case 1:
                wsprintfW(date, L"Jan %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 2:
                wsprintfW(date, L"Feb %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 3:
                wsprintfW(date, L"Mar %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 4:
                wsprintfW(date, L"Apr %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 5:
                wsprintfW(date, L"May %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 6:
                wsprintfW(date, L"Jun %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 7:
                wsprintfW(date, L"Jul %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 8:
                wsprintfW(date, L"Aug %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 9:
                wsprintfW(date, L"Sep %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 10:
                wsprintfW(date, L"Oct %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 11:
                wsprintfW(date, L"Nov %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
            case 12:
                wsprintfW(date, L"Dec %.2u, %.2u", localTime.wDay, localTime.wYear);
                break;
        }

        RECT desktop;
        // Get a handle to the desktop window
        const HWND hDesktop = GetDesktopWindow();
        // Get the size of screen to the variable desktop
        GetClientRect(hDesktop, &desktop);
        // TODO: Add any drawing code that uses hdc here...
        //get dimensions of window
        RECT rect;
        GetClientRect(hWnd, &rect);

        HWND desktophWnd = GetDesktopWindow();


        ExtTextOut(hdc, rect.right / 2 - 95 - point.x / 100, rect.bottom / 2 - 40 - point.y / 100, ETO_OPAQUE, NULL, time, _tcslen(time), NULL);

        HFONT smallFont = CreateFont(35, 15, 0, 0, FW_DONTCARE, FALSE, FALSE, FALSE, DEFAULT_CHARSET, OUT_OUTLINE_PRECIS,
            CLIP_DEFAULT_PRECIS, ANTIALIASED_QUALITY, VARIABLE_PITCH, TEXT("Segoe UI"));
        SelectObject(hdc, smallFont);
        ExtTextOut(hdc, rect.right / 2 - 85 - point.x / 100, rect.bottom / 2 - 70 - point.y / 100, ETO_OPAQUE, NULL, date, _tcslen(date), NULL);



        EndPaint(hWnd, &ps);

    }
    break;
case WM_DESTROY:
    PostQuitMessage(0);
    break;
default:
    return DefWindowProc(hWnd, message, wParam, lParam);
}
return 0;

}