Should I do Multiple Extractions?

I'm finishing up my first grow and used a 100 micron screen on the trim and got around 3 grams of keif. My question is do you think it's worth the time and effort to try an iso extraction or another cheap method?

Yes! You should definitely attempt an extraction of any remaining cannabinoids. You can purify your extract further by washing with activated carbon, and then again with water and ether (wash, let them separate, decant ether layer, evaporate ether and scrape up extract)

I'll try an iso extraction. I don't have ether and if I did i would probably go fear and loathing with the shit