It's a big decision to make. I researched for a solid 5 weeks before deciding that it was the right decision
Take care of yourself by drinking plenty of water, eating well, and going to bed at a decent time and the symptoms wont last long at all. Some don't even have symptoms after their shots. But if you do feel the vaccine shot working up a fever or anything, that's natural and you can just take something like flu medicine syrup. That will make it much easier on yourself to get quality rest
I took a bunch of nutritional yeast the day before, day of, and weeks after the shot just to make sure I was loaded up on B-vitamins. And I took flu medicine syrup w/ elderberries to help the immune system battle the spiked proteins created from the vaccine. If I could go back in time, I would have taken that medicine as soon as it started to get dark on the day I got the vaccine, then maybe one more time a couple hours later, then once in the morning, and two hours after that. Would pretty much guarantee the immune system has what it needs to greatly reduce any symptoms. That's me at least