My job requires me to shuck oysters

I am not necessarily Buddhist but I am a vegan and killing doesn't sit well with me. I have suffered terrible sleep condition over the past 2 years and can't work in my field anymore and have no experience in any other field and have a hard time getting to work at an early time so midday work is best for me. Unfortunately the restaurant I work at currently has oysters for sale and they are alive when you prepare them which involves killing them. I don't know how to rationalize this but I am struggling financially and am working on getting a different restaurant job where they might not serve this dish. But I have killed some oysters already. How do I come to terms with this?