YH lol it’s does mean yeah sorry sometimes I forget others didn’t grow up texting lol

Lmao i think I'm younger than you. Just different demographics most likely

I’m 23 so maybe tbh I’m a lazy texter so if I can abbreviate a word I will lol

YH😀 I'm a few years younger than you.

The other thing that's kept me from using too many abbreviations is that I text/chat with friends in a few different languages, which don't tend to share the same abbreviations. (Some emoji, such as 😬, mean vastly different things from country to country too ahah)