How to keep a conversation alive when she replies but asks nothing back

A reply with no question isn't a dead end. It's someone who is reading your texts and choosing to respond, which takes effort. But she's not yet the one who drives. She responds to stimulus rather than creating it. She could be cautious by nature, unsure if you're worth the extra work, or interested but undecided about where this goes. The reply itself won't tell you which. What matters is that continuing to ask all the questions won't change her behavior. It will only confirm that this dynamic is normal. You need a different approach, not a different topic.

Your reply needs to do two separate jobs. First, show you actually heard her and that you're a real person, not someone running a script. Don't just acknowledge what she said. Say something about it that reveals your thinking or your experience. This gives her something real to respond to instead of another question to answer. Second, you need to create space for her to take the wheel. The best way is to mention something about yourself or your perspective and then stop. Don't follow it with a question. Let her decide if she wants to know more. When you plant stakes about who you are and then go quiet, good matches will ask. Bad matches will stay silent, and that's information you needed anyway.

Send one reply using this approach. Not two. Not three. One good one that shows up as a person and leaves room for her to do the same. Then wait for her response. If she replies with another one-sided message, try once more. If it happens a third time, stop. At that point you have your answer. She's comfortable receiving but not comfortable giving. That's not going to change by you getting better at texting. Waiting more than three days for her reply is different though. People get busy. Give it a week before you decide the conversation is really dead. The context of her life matters. Once you do decide to stop, actually stop. Don't send a check-in text after two weeks of silence.