It does NOT matter if you "use" or are just having a bad day.
Being a crewmember means being a TEAM player. I doubt a ship holds much tolerance for negligence due to impairment. (Exxon Valdez) I don't know what your specific job is however, I do know you and every crewman has a FIRE station assignment in the event of that type of emergency. Now, peoples lives are at stake. People depending on YOU just like you depend on them.
The best judge for your fitness for duty at any time is ultimately YOU. Do you want to be held responsible for the lives of your fellow crew if you know in your heart you are NOT FIT ? (it can happen to ANYONE at ANYTIME) Imagine a SWAT cop who gets an eye injury on the job DOING his job. He chooses to NOT REPORT that he never fully recovers but that does not change the fact he has bills, a family who dependes on him to provide and a pension to protect; not to mention ALL his fellow officers. So come one day, YOU are in the bank doing your business when some thug botches a robbery attempt and takes you hostage. Who do YOU depend on to save YOU ? SWAT is called, several shooters take up positions including our friend with the bad eye who happens to be the one cop who reports HE has the shot. Do YOU want him to take it ?
I'm NOT trying to kick a downed horse, rather suggest that it may be time to move on. We all want to do the type of work we enjoy however, that NEVER gives anyone the right to place others in peril just to satisfy our personal needs.
The man has a plan for you life including choices and obsticles. Use your choices to ask for the wisdom to navigate the obsticles.
.....surely goodness and mercy will FOLLOW me all the days of my life
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.....surely your grace will CLEAR the path BEFORE me all the days of my life