For example these
https://www.rollitup.org/t/anesia-elementz-dwc.1104333/ have been going about the same time as yours, and will be chopped down probably in a week or two.
DWC gets a lot easier once you find your feet a bit, and get things a bit more dialled in.. its just experience, really... you'll start to intutivley know what needs doing, and how long you can go between checks.. I'll quite often not even open my tent for 4 or 5 days at a time becouse I just 'know' there won't be anything urgent to do.
I wouldn't want to go on holliday though just incase - power cuts, pump failiures etc. can all be a problem, and you needs to be able to fix that pretty quick.
You've kinda jumped in at the deep end (pun intended

) doing DWC for your first ever grow, but the plants look good!