see where the projection is coming from? that's where you want to judge trichoms (first and last picture here)
Kinda place teh loupe near a calyx first, the nlower your head and finally focus easily at this point. As far as those clip-on things and a phone.. good luck... your hands are steadier than mine, i can see, but still tough. The good pics you see on here are with digital microscopes, but .. if it's a hobby go for it :)
Anyway, looks a tad early. Think i see 1 amber trichome on the first picture? so, it's got to be early yet.
just look at top, and a bit down on a few colas scattered throughtou canopy and make a judgement...
once you see some turn a dark amber, you'll know what to look for as far as that.. i see a tranluscent amber in your pick at best.. not 100% sure, and still soem glassy ones.
don't try to guesstimate how long.. don't even think about it like that because there is no answer... just keep observing and pretend not to care ... as best you can, lol.. everyone has that anxiety, for lack of a better word, lol. you are not alone.