Honestly, 2.5 months is still quite early so don't stress yourself too much, most babies naturally start to self-settle better somewhere around 4 to 6 months when their sleep cycles mature a little. What you're already doing (stopping the bounce and patting her to sleep in a stationary yaolan) is actually a really good middle step, so you're on the right track without even realising it. My friend weaned her firstborn off the yaolan at around 4 months just by gradually reducing the motion each nap, and she said the key was consistency over a few days rather than going cold turkey, because cold turkey just led to a lot of crying with no real progress. For outings and staycays, honestly most babies are more adaptable than we think once they're slightly older, the unfamiliar environment sometimes even works in your favour because they're too tired to protest. Just keep doing what you're doing, and if she's settling in a still yaolan now, the cot transition will likely be less painful than you expect in another month or two.