what time should i go ?

hi! so this is gonna be my 2nd rsd (first one was black friday ), and last year i went and sadly didn’t get what i wanted so i left empty handed. long story short my record store all of a sudden blew up in popularity , last record store day 20 people came ( one of the biggest amounts of people ) and i came at 6am (store opens at 9am) and i was 8th in line. this year over 100 people have commented on my record stores page saying they wanted to go and i’m really intimidated by this, what time should i go to secure all my isos ( preferably wanna be 1-10 in line)