At such a small size you have to get help quickly or else you'll end up being swallowed whole by a snake or chopped up by a scorpion, this is Mexico after all, who knows what's out there during the night looking for a quick snack.
You begin walking towards what looks like an expensive summer villa further down the pristine beach in search of some shelter before the sun sets and you can't see anymore, the villa has a very abstract and modern design to it with clear white walls and dark grey beams along the side, not to mention the clean spotless windows that have obviously been recently cleaned.
While walking towards the impossibly huge structure you notice that the sand below you is unusually solid, putting your brain to some thinking to pass the time as you walk, you realize that it's because you are so much smaller and the grains of sand are so much bigger now, it's more like walking on a gravel driveway than a beach, which isn't exactly bad for you right now.
Doing some more thinking to pass the time you can't help but wonder who lives in the villa, they have to be crazy rich for sure though judging by the house, maybe some elite business woman taking some time off from a stressful life to relax in the sun, or maybe it's some local mexican girls out partying in their parent's expensive summer home, whoever it is, you'll have to get their help.
Walking across the beach is essentially walking across a desert for you, there's nothing around at all aside from the distant trees on your far left and the noises of the ocean on your far right, no human in sight, the only civilization out here is the massive summer villa that is slowly getting closer to you as you continue your death march across the sand dunes.
After what is likely hours you finally reach the front door of the house, even the small steps here tower over you like small buildings, another reminder of how minuscule you are, reaching the door after miraculously climbing all of the steps you spot a very small hole and squeeze through to the other side and into the unimaginably huge villa.
Taking in the whole view of the house you slump backwards against the door, suddenly you are jolted back to attention by a deep rhythmic thumping noise flowing all throughout the floor and shaking your entire body if only a little bit, you recognize this to be some local mexican music as you hear the vocals fade in, but you then notice a different noise, loud giggling and thumps that sound more like footsteps than beats to a song, you've found civilization!
You can't see them yet because they're in a different room but you know they must be mexican based on the last name of the sign on the wall, 'the Valdez Family', the room isn't that far away so it won't take long to get there so you start jogging towards your saviors.
After a brisk jog you reach the edge of the door frame and peak around the corner, ahead of you are three colossal mexican beauties dancing and singing playfully to some music unaware of your existence, they must be the daughters of the crazy rich people that own this place, the thumping that their feet sends tremours throughout the floor of the entire house and shakes you to your core, judging by their size they must all be at least 5'8 but probably taller, while you stand at an absolutely minuscule 3/4 of an inch.
The shortest one is at 5'9 which is even taller than you when you were at full size! The next girl is just around 6'0 and the third and tallest is at 6'3, these have to be the three tallest girls you've ever seen at normal size, at your absolutely tiny size right now they are like mexican goddesses to you, they would have to get down on their knees and really look if they wanted to find you, which they don't, in fact they have no idea that you exist so if they by some chance spot you, they will probably think you're a bug and won't hesitate to smash you unless you are close up when they see you.
You're now faced with a huge dilemma now though, any of these girls probably won't notice you let alone notice that you're human at this size so if you want help you'll have to risk getting unknowingly stepped on by one of their beautiful feet or sat on by their huge bums if you want to get close enough to them to not look like a bug, but you don't speak spanish and they more than likely don't speak english so you might have trouble asking for help.
If one of them found you they might also just keep you around as a pet, a slave, or a cool toy.
You could alternatively just secretly live off of these goddesses at their feet depending on them to exist, you are far from home and have virtually no chance of getting back, and even if you did what would you do at 3/4 of an inch?
This could be a viable option and would be better then risking becoming one of these girl's property or a pet, how could they help you anyways, you don't speak the language and they almost definitely wouldn't even know where to start to help you if they decided to.
You have to make your decision soon though because it looks like they might leave and do something else soon.