was i right to fold???

firstly sorry i didnt get the hand for this but heres how it went,

50nl 6 max all evenly stacked around £60-70ish

i had AKs first to act, i raised to 2, 2 folds 1 call 2 folds,

the caller was new to the table and i had no stats on him,
flop 5, 6, k none suited and none my suit

villain bet 3, i raised to 7 villain went all in for 58, i had about 68, i folded,...

was this the right play??
i wasnt sure of his style of play and thought there will be more opportunities, not worth risking my stack??

comments??