when i draw it suddenly move away

Hi

Try either one of these, I assume you're on Windows 10

If not please provide more info

1. Use notepad to create a text file and type in :

# Use WinTab

UseSystemStylus 0

2. Save the file as PSUserConfig.txt in the following location

C: > Users > Username > AppData > Roaming > Adobe > Adobe Photoshop CC 2018 > Adobe Photoshop CC 2018 Settings

3. Go to the Wacom tablet properties and for Photoshop under Mapping  uncheck "Use Windows Ink"

Or

1 Select everything inside the quotes here (don't include the quotes): “reg add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Pen /v LegacyPenInteractionModel /t REG_DWORD /d 1 /f”

2 Copy it with Ctrl + C on the keyboard.

3 Type Windows Key + X (together), a menu will appear

4 Then type "A" on the keyboard. That will give you an elevated administrator PowerShell command prompt.

5 Paste the command you copied into that window with Ctrl + V

6 Hit "Enter" on the keyboard

7 Reboot

You may need to enable hidden items in file explorer for the first option