Need Help With Firewall Deployment

I bought the Fortigate 30E for my home local area network. It's running version 6.2.3 firmware. I have a couple of questions.

1. I should probably upgrade the firmware first before I actually start using it on my network.

2. I'm having a hard time with getting the system working in the first place. I'm fairly weak on routing/subnetting/addressing but I know enough that with some help, I can figure it out.

3. I've checked out the cookbook and manual for this device, and a lot of this stuff is a bit over my head.

I spent a couple hundred on this thing, so I'm determined to figure it out and get it working. Please help. If someone even wants to personally guide me through it on Skype or something, I'll throw some cash your way on cashapp.