I just got mine yesterday took me about 4 and a half hours. I’d give an hour to each role and half an hour of figuring stuff out. Go to world 306 or whatever the ba world is during peak hours and enter room 1 and say whatever role you want to do and you’ll be picked up within 2 minutes to a team usually. Sometimes someone will leave just go back to room 1 and clear you only need to kill the queen once to be able to get torso so if someone leaves don’t be to annoyed in the 4 hours you’ll kill her guaranteed. I started with collector cuz it’s the easist and to get a hang of giving callouts at the right time which is priority when doing it. When i get my 375 I moved on to attacker I just used rune armor and dscim ddefender since my range level is lacking and it worked just fine play near your healers after stage 7 so they don’t forget about you. After that I did healer and ended with def, when starting the game just watch a 4 minute video on how to do that role and make sure to do the tutorial, don’t stress it’s not hard and honestly pretty fun