Why price lower as a beginner? Perhaps you've made mistakes that have set the bees back and reduced their potential, but what you do harvest is honey like any other. Don't drag the pricing down for everyone.
You can pack immediately after extracting (providing the water content is ok, see next paragraph). General process is remove frames from hive, uncap them, extract them, run through a double sieve or other filter into a settling tank, leave for at least 24 hours - fine wax particles that got through the filter, and any bubbles, will rise to the top. Skim off this foam/scum (nothing wrong with it, keep it for yourself, it just doesn't look as nice), jar the rest.
A cheap refractometer (approx £20, e.g.
Honey Refractometer,V·RESOURCING Hand Held Be'(Baume)/Brix/Water Refractometer for Honey Test,Tri-Scale(Baume:38-43°;Brix:58-92%;Water:12-27%) : Amazon.co.uk: Home & Kitchen) will tell you the water% of your honey. To legally be sold as honey it needs to be 20% or lower, ideally under 18% for long term storage without fermenting.
Rather than a measuring cup put some scales under each jar, tare, fill to weight. Rinse and repeat. Tedious, but you know each jar is the correct weight or more and fine at a small scale. (e.g.
https://www.amazon.co.uk/ACCUWEIGHT-Electronic-Weighting-Precision-Multifunctional/dp/B07CYN4VCH/)