What to say when she says she's proud she finally tried rock climbing

The detail that matters most in her message is that she'd been talking about this for a while. That means the win is about overcoming her own hesitation, not about climbing. She's telling you she closed a gap between what she says and what she does, and she's a little surprised she did it. If your reply only addresses the activity, you miss the thing she's proud of.

So the signal to read is "I finally did the thing I kept postponing." Acknowledge the postponing. You can refer to it lightly, something that shows you noticed the two years, without making it a joke at her expense. Her "lol" and "kind of" are a signal too. She wants the accomplishment taken seriously but not inflated. Match that tone, keep it warm, and let her decide how big it feels.

Replies that work here share one feature: they point at a specific part of her experience. Some options are the moment she decided to go, the part that felt hardest, or whether she wants to go again. Each one shows you read the message closely. The reply should be short, one or two sentences at most, and it should contain a single question or observation she can answer without effort.

A draft is the right kind when it names something she actually said and invites her to add to it. A draft is the wrong kind when it could be sent to anyone who mentioned any hobby. Leave out any mention of your own experience in the first reply. Leave out advice. You can offer to climb with her later, but save that for after she's responded, because it reads as a move if it comes too early.

Send this in the same window she sent hers, or within a few hours. She shared something from the day, and a fast reply makes it feel like you were paying attention. If she sent it late, a short reply the next morning is fine, but don't stretch it out for a day or two or the moment is gone.

If she doesn't reply to your first message, wait a full day before doing anything else. A quiet response to a good-news message usually means she's busy, not that she's lost interest. If you do follow up, make it a light second message that refers back to the climbing, something like a question about the next session she's thinking about. If she still doesn't answer, let it go. She told you something real, and that's worth more than pushing for a reply that isn't coming.