Oh boy, you live really close to me. Are you sure the soil dries within 5 days? I thought so too, but it turns out if you leave the stick in for a good 15 mins, you will get a better idea. I have had instances where I thought it was quite dry but turns out it was still wet at the very bottom or around the roots where the soil has really clumped together. This is why I completely gave up on using anything organic. They vary the moisture a lot just by increasing the ratio sligthly. I made my mix every time I potted and realised, some batches stayed wet for a month just because I forgot and used 50:50 instead of 60:40. So I'm just using grit and some kind of clay based gravel. Well it ultimately depends on your climate, I'm not sure how hot or dry where you live is. It was unbearably hot, droughts everywhere, then next week, its floods and landslides everywhere. I don't know what is happening to the climate here. P.S now don't drastically change anything now. Just see how it fares with your current mix. Trail and error, and a lot of patience works best. If it turns out the plant is dying, then you know its your mix. I would say, avoid coco coir/peat. It could contain lots of salt since they process them with saltwater. Unless you know for sure they use freshwater.

Thank you so much Nik, Rina and Lisa for all your advice. Nik, I do plan on repotting the plant into a gritty mix. No organic soil or peat whatsoever. Good to know that that's advisable. I'm hoping grit (Poultry grit), perlite and bark will be okay. Should I skip the bark? Thanks for letting me know about the kind of pot I need to use. And yes Rina, I'll take that advice and go for a planter box, or just a wide but shallow planter. Since the plant requires a lot of sunlight, I'll keep it on the balcony and not on my plant shelf that seems to not get too much sunlight. Will tweak its position during hot summers of course.

Echeveria, perhaps E. lilacina.

Crassula ovata ‘Minima’ aka mini jade