i was in a multi table tourney the other day please read!!!!

i was in a multi table tourney and ya kno when every player on the table is sitting out its so boring i was taking all the blinds but when it came down to actually playing poker i had around 30k in chips this is after like 1 hour of play i get moved to a new table where theres ony 1 person sitting out it must be like my 3rd hand and im looking down at pocket aces, but because ive just been blind stealing my brains gone dead , blinds are 300/600 so im in middle position and 1st player to act goes all in for 4.5k put me in a weird position do i re-raise or just flat call i make a crappy decision to just flat call 2 other players call button and SB , flop comes Qd 7d 2d SB checks ive pushed all in the button folds SB insta calls and turns over 56d im thinking now was this my fault for not re-raising or just some lucky txxt sucking out. if i would have been playing for the first full hour and accumalated that many chips anyway this would have never happened.
well thats what i think i had poker rust lol gutted out in like 200th place and wasted another hur of playing crappy blind stealing.