Yea i had this problem in the past at the beginning of SB the static i was in still had people in 290 gear for o1s i wasn't happy my mood got worse as it took 4 weeks to beat o1s and i had switched my main from brd to nin to provide more rdps i now love nin despite clunkyness and play it way better, and then during o2s had 3 people leave, i just gave up by the Monday following week got o2s kill which pissed off the other 4 members because got kill without them despite not affecting group loot. so i left spent next week learning and killing o3s and started work on getting Neo Exdeath kill when met current static who are much closer to skill level but more importantly want to improve themselves.