Switch to a stable Linux distribution like Debian Stable or Ubuntu LTS. The issues you're facing are much more likely caused by new package defects instead of the init system, or new defects in the init system packages. Switching the init system but keeping rolling will change the where and how defects crop up. Switching to a stable distro will nearly stop new defects from cropping up altogether till a major version upgrade. Which is measured in years. In the case of Ubuntu LTS, 5 years by default and 10 years if you activate the free Ubuntu Pro. That's the easiest way to stop servers from breaking and having to watch over them.