"I" think you shouldn't trim right now...You may have given them bloom nutes too soon...next time do the veg nutes till you see signs of buds forming... they need nitrogen in flower too just not as much... Also might need Cal/mag... THey really do look good tho...let them get as much sunlight as poss and you'll start to see them buds form...also i really think you have a more Sativa dom plant so your buds are not gonna look like they would on an Indica plant..might be why your friends look different...
GOod Luck