Hi sinaran,first i would use proper leader material for my leaders not your mainline ,your leader should allways be about 4pounds lighter test than your mainline,example ,12pound mainline with 8 pound leader,the reason for this is if you were to snap your line on a fish or a snag your leader would break before your mainline would and you would only lose your hook and leader,also another reason for using lighter leader is it is less visible particularly in low clear water which can meen the difference between a fish taking your bait or not,this is especially true in coho season when the fish are constantly swimming through the gauntlet of lines that are common on the river in the fall.As for your pink worms, first you need to have a needle of about 2 to 3 inches in length,tie your leader to the eye of the needle now starting at the top of the worm thread your needle through the center of the worm and pull it out about one inch from the tail ,the line should now pull through the worm as you pull out the needle,now i like to place a small bead on the line just above the hook,tie your hook on at the tail end of the worm and tie your leader to your mainline,the bead is placed on your line to help stop the hook from ripping into your worm as easily.Hope this helps .