Congratulations on your new acquisition!
Take it to a reliable rv place and get the wheel bearings repacked or do it yourself.
Check the date on your tires
. Trailer tires
typically go bad from age before wearing out, sidewalls dry out, checker, etc.
I see your tires
have white stripes. They probably are not trailer type. There are big discussions on this forum about this topic. You have to make your own decision.
Spend your first night in your trailer out on your driveway. That way if you forgot anything, it is close at hand.
A charter member of the Buffalo Plaid Brigade!
Whether you think you can or think you can't, you're right.