First you need to setup your controller as a controller for your DAW. Have a look here:
https://www.arturia.com/faq/keylabmkii/keylab-mkii-tips-tricksThen also need to set the controller up to control instruments and effects. There you can have a look at the video "Setting up MIDI" here:
https://www.ableton.com/en/live/learn-live/setup/You can look at the videos "Setting up an audio interface" and if you need it "Configuring your audio ins and outs" from the same page, to set up you audio device.
Also learn about Ableton Prefernces in the video "Setting your preferences" also from the same page.
When this is done, then it's about learning how to use your gear for recording.
Videos from here is meant to help:
https://www.ableton.com/en/live/learn-live/workflows/That could be the videos: "Recording MIDI", "Capturing MIDI", "Sequencing MIDI, part 1", "Sequencing MIDI, part 2" and so on.
Ableton Live also have a manual here:
https://www.ableton.com/en/manual/welcome-to-live/On this page you also find informations about certified training for Ableton Live:
https://www.ableton.com/en/live/learn-live/ Beside that you can find lots of videos, tutorials and courses for Ableton Live and other DAWs on the web.
I also suggest you read in Arturis manual for your controller and MIDI Control Center (MMC) to learn about what the controller can do and how. You can find the manuals here:
https://www.arturia.com/support/downloads&manualsYou need patience and use time to search info and to learn.
I don't know if Ableton Live is the best DAW for you, but that also depend on what you wan't to do. If you find it good to work with, then stick to it, otherwise perhaps try another DAW.
Have a good time.