As a newbie, you should take the time to read a lot more before you start worrying about jigs and snapmarks. There are a lot of topics that sort of build on each other, and going through the work of hitting that learning curve will answer so many questions, and also clue you into new ones that you hadn’t even thought to ask.
One of my favorite roundups of getting started posts is here:
I get it, reading isn’t a lot of fun, but the time you spend going through all this stuff will absolutely pay off.
I can’t wait to see what you make 