Just got a snowboard. what if i'm 10 lbs heavier than the weight range recommended by the manufacturer?

the board may be a little small for me. the board i should ride must be 154 cm at least. but this one is 152 cm, but people told me 2 cm is not gonna make any difference. but when i got the board, i found i'm about 10 lbs heavier than the heaviest weight recommended by the manufacturer. How does this gonna affect my riding? will it be bad for the board? i'm a beginner.