Like most people have already said, coil is endgame content regardless if its a year old. Its still considered endgame. You need skill, patience, practice and a close team of people who also can put in the same time as you. Just keep practicing it. Its not going to happen in 1 or 2 tries. Most people it took weeks/months of practice and wipes to clear. Put in the time to work for it and you'll get the win.