Well you seem to rely on your uncertainty and lack of firm scriptural knowledge.
but if you can defend your position that this vaccine ( I assume you just mean the two double dose ones that use mrna technology) is the mark of teh beast given long in advance of the beast arriving, I am all ears. But a simple straightforward normal reading of Scripture concerning the mark (even with the symbols involved) clearly and unambiguously show that the mark is not instituted as a sign of submission to the antichrist until the false prophet orders it in teh mid point of the trib.
also there is this:
Revelation 14:9
And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive his mark in his forehead, or in his hand,
Your contention concludes that god will warn the world once it is ordered by the false prophet but will allow His followers now to take th emark with out a warning.
How many vaccines have you already received?
MMR, DTP, POLIO, Tetanus, Flu, shingles, pneumonia? How do you know these are the mark fo teh beast? What makes covid vaccine different?
No microchip has been added yet despite all the theory conspiracists say so. I follow all thiese ideas closely as a believer for they affect Christians and I seek to sift truth from fiction.
Taking the covid vaccine will not cause me to lose my slavation. Not taking it doesn't make one a better christian either. It may get one to heaven quicker if they contract Covid however.