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