I want to upgrade my macOS High Sierra Ver 10.13.6 to 10.14

Hello Community

i am using Macbook Pro 13inch Late 2011. Presently i have my macOS High Sierra Ver 10.13.6. I want to upgrade to ver 10.14 or later. As i am using Adobe purchased software, all the software is not getting updated to latest version. While updateing the software its shows not compatible and pop up message is coming mention that " Please update your operating system to macOS version 10.14 or later.

Please suggest what to do, i want this experts advise.