Best advice from my time was to have a separate work phone and switch it off the moment you leave the crew room until the start of your next duty. Any old brick will do. My base captain did try to call me in for a meeting to ask why I wasn’t answering his calls on my days off, but I missed that call too.
Around half of my initial Ryanair course left for new pastures and half stayed to do their commands after 3-4 years of RHS. I don’t know any that regret their decision. It’s a toxic company but there’s plenty of small bases away from the glare of Dublin in some prettier parts of the continent that you can probably make a good life for yourself. Until they close that base, obviously.