So my advice for you is not very fun. What will help you the most is stepping back a bit and starting a bit smaller, getting used to things before you take on your first “fun” project, like a sign.
Here’s how I’d recommend getting started:
Now, ok, that’s not fun, nobody wants to read. You want to make your sign.
If you upload what you’re working on we can be of much more direct help, I’m sure we could get you cutting in short order, and then you can take the time to go through all the posts about the basics when you have time.