diff --git a/OneByteWallhack.py b/OneByteWallhack.py
index dabe2d8..5cf6f1e 100644
--- a/OneByteWallhack.py
+++ b/OneByteWallhack.py
@@ -1,13 +1,36 @@
 import pymem
 import re
 
-pm = pymem.Pymem('csgo.exe')
-client = pymem.process.module_from_name(pm.process_handle,
-                                        'client.dll')
+# Define constants
+CSGO_EXE = 'csgo.exe'
+CLIENT_DLL = 'client.dll'
+BYTE_PATTERN = rb'\x33\xC0\x83\xFA.\xB9\x20'
 
-clientModule = pm.read_bytes(client.lpBaseOfDll, client.SizeOfImage)
-address = client.lpBaseOfDll + re.search(rb'\x33\xC0\x83\xFA.\xB9\x20',
-                                         clientModule).start() + 4
+try:
+    # Open process handle and module
+    pm = pymem.Pymem(CSGO_EXE)
+    client = pymem.process.module_from_name(pm.process_handle, CLIENT_DLL)
 
-pm.write_uchar(address, 2 if pm.read_uchar(address) == 1 else 1)
-pm.close_process()
+    # Read module into memory and search for byte pattern
+    client_module = pm.read_bytes(client.lpBaseOfDll, client.SizeOfImage)
+    address = client.lpBaseOfDll + re.search(BYTE_PATTERN, client_module).start() + 4
+
+    # Modify function byte and close process handle
+    new_value = 2 if pm.read_uchar(address) == 1 else 1
+    pm.write_uchar(address, new_value)
+
+except pymem.exception.ProcessNotFound:
+    print(f'{CSGO_EXE} process not found')
+except pymem.exception.ProcessError:
+    print(f'Error accessing process {CSGO_EXE}')
+except pymem.exception.ModuleNotFound:
+    print(f'{CLIENT_DLL} module not found')
+except pymem.exception.MemoryReadError:
+    print('Error reading memory')
+except pymem.exception.MemoryWriteError:
+    print('Error writing memory')
+except AttributeError:
+    print('Byte pattern not found')
+else:
+    with pm:
+        pass