这里应该是So far as I am concerned ,you can do what you like,就我而言,你可以做你喜欢做的.
as long as 是个固定短语,只要的意思,引导条件状语从句.
as (so ) far as I am concerned 也是个固定短语,意思是就我而言.
eg.As long as you drive carefully,you will be very safe.
只要你开车小心,你就会很安全.
As far as I am concerned,they are strongly against it.
据我所知,她们都很强烈地反对它.