It’s easy to forget that your subscribers are people with likes and dislikes (not just leads). Firstly, always watch your open, CTR, unsubscribe and complaint rates. That’s the fast way to gauge whether your email was engaging or not. When appropriate, use what personalisation you have at your disposal.
Perhaps what’s needed is a shift in attitude. To become stronger and resistant to the tribulations of life, maybe the answer is that we need to become softer not tougher. Maybe what the world needs is more nurture.
If you don’t know much about your subscribers, you could consider running a campaign asking them for more details through a simple preference centre. You may wish to consider offering an incentive or freebie in exchange for this information, which will help boost your response rates.