Honestly, it's been 15 years since president Calderón began the "war on cartels", longer if you count the 2004 deployment of the army to Nuevo Laredo (that was when Fox was president), and since then it hasn't been one day without violence, sometimes more, sometimes less, it has escalated recently a fair bit, but it's basically been there for most of my life, it's the "normal" thing in a way, so yes, part of me realizes how fucked up things are, but there's also a part of me that's just like "yup, this is the way things have been always" and honestly, it's mostly thanks to the internet and meeting people from other countries that I started to see this as "this isn't normal, things aren't like this in other countries (with some exceptions)".
To (try and) answer your question, it hadn't been a thing that worried me too much, it was another thing to be careful of, like looking both ways before crossing the road, if that makes sense, up until 2018, when AMLO gave the cartels carte blanche, now, it is a bigger concern, but at the same time it's not something I get too stressed about, I get angry when something happens and there's no response from the authorities, or the president mocks the victims, stuff like that really does piss me off, but I wouldn't consider it to be something emotionally draining, not yet, there's still 3 more years of this dude.
Last time I remember this being something that did really leave a mark for a while was when I was a kid, there was a time when we had army trucks full of soldiers, humvees with turrets and more patrolling the streets, there were army trucks pretty much on every corner, back then it was scary, but even that became normal after some time.
Though I also have to confess, I do live in a relatively safe area, there's been some attacks on restaurants and bars, and the chief of police of a nearby town was executed on his way to work, his shot up truck was found on a highway I've been on a fair number of times, but still, compared to Michoacan, Guanajuato, Sinaloa, Guerrerro and others, we're doing pretty well.
TL;DR: I'm kinda numb to it now, so it's a "whatever happens happens" kind of deal.
Sorry it took too long to reply, just never had to actually think about this kind of stuff for too long, and now that I read it... It doesn't look too good lol. I feel it makes it seem like I'm insane or "broken" in some way.