How do you actually know when a transmission problem needs urgent attention

[danielvision]

Is there a reliable way to distinguish between a transmission symptom that genuinely needs to be looked at within the next few days versus one that can reasonably wait a couple of weeks without meaningfully increasing the risk of more serious damage, because I feel like every source I find online either tells me to treat everything as urgent or provides such vague guidance that it's essentially useless for making a practical decision about something that affects my daily commute and my ability to get to work while I figure out the logistics of getting the car to a workshop? The situation I'm in is that my Toyota Land Cruiser, a 2014 with just over 140,000 kilometres on it, has developed a hesitation when shifting from second to third gear that I first noticed about ten days ago, and the reason I'm asking about urgency specifically is that my schedule over the next two weeks is genuinely difficult to work around in terms of leaving the car somewhere for an unknown period, not impossible but complicated enough that if this is something that can safely wait until the end of the month I'd strongly prefer to deal with it then when I have more flexibility. The symptom itself hasn't gotten noticeably worse during the ten days I've been aware of it, it's been pretty consistent in terms of when it happens and how pronounced it feels, which I've read can sometimes suggest something that's been developing gradually over a longer period and has reached a plateau rather than something that's actively deteriorating, but I'm also aware that my interpretation of that pattern could be completely wrong if the underlying cause is something that does its damage silently without changing the external symptom profile as it progresses. A neighbor who's been in Sharjah for many years and knows the local automotive landscape fairly well mentioned that when he had something similar on his Prado he found gearbox repair and transmission service in Sharjah and had it assessed by people who were upfront with him about the urgency question specifically, telling him based on the diagnostic whether it was something that needed immediate attention or whether there was a reasonable window to schedule it in a way that worked with his availability, which is exactly the kind of practical guidance I'm hoping to get rather than just a recommendation to bring it in as soon as possible regardless of the actual severity. The thing that would help me most right now is understanding what kinds of transmission symptoms genuinely represent situations where continuing to drive risks compounding the damage significantly, versus symptoms that indicate a problem that needs fixing but won't fundamentally change in scope or cost over a two to three week period of continued careful driving, and whether there are specific things I should be monitoring in the car's behavior during that period that would tell me if the situation is changing in a way that would move it from the wait category into the urgent category, because I'd rather have clear criteria for making that call myself than just driving it and hoping for the best without any framework for deciding when my tolerance for waiting should run out?