get (something) home

When you buy something new, you take it back home with you. To describe this action, use the phrase "get it home":

I can't wait to get it home and try it out!

This phrase is only used for new things that you buy, get as a gift, or are given at work.

I can't wait to (do something)!

You say this when you're excited about something:

I can't wait to see you!

I can't wait to finally be finished with school.

You can also just say "I can't wait!"

A: So I'll see you next weekend.

B: Great! I can't wait!

try (something) out

The phrase "try ___ out" means to use something for the first time.

The phrase "try ___" is good for actions:

I'd like to try skiing.

Or for eating things:

Have you tried the crab cakes?

But when you're talking about using an object, like a tool, an electronic device, etc., "try out" is usually better.