Are you certifying the haram meat? If you are saying that this is ok to eat, then that is technically certifying.
With the meat, it is problematic if your are certifying it for consumption. But with the alcoholic beverages it’s a completely forbidden.
You need to seek another job, unless there is nothing available except this job, if that is the case then you need to try and avoid it as best you can. If you can’t avoid the haram things then you need to find a new job as best you can as this is problematic. As for the money previously made you can accept as a procurement from a non believer.
You should endeavour to find another job, certifying alcoholic beverages is very problematic and can be considered forbidden if it is approving its consumption. The income received is only permissible in the case where the jurist considers it mixed income in which he allows you to keep it if your situation is dire and there is no other form of employment.