Hiya and welcome!
The handling plan sounds about right, as long as it's relaxed about it.
Other than that, really just the basics unless you have a specific question:
- Make sure the temperature range is correct. Around 21C at the cool end and 31C at the warm end (70-88 degrees F in old language!).
- Plenty of hides at both warm and cool ends, so that the tiddler can move around without being seen.
- Keep the water bowl at the cool end to avoid humidity getting too high.
- Keep the tank out of direct sunlight, to avoid overheating.
- As the snake grows, the food size should get bigger, while the intervals between feeding get longer. Search for "Munson Plan" on this forum for some great guidelines on when to move to the next food size.
- If it suddenly refuses to eat and starts hiding more than usual, then it's probably about to shed. The first couple can be a bit nerve-wracking until you get used to the behaviour patterns (and each Corn will be slightly different).
- It will be adult sized at about 3 years old, although again, how fast and how large it grows depends on the individual.
If you can think of anything more specific, it's worth using this board's "Search" facility, as you can bet that most basics have been covered before. However, don't be afraid to keep posting those questions if you can't find what you're looking for.
A great book is "Corn Snakes: The Comprehensive Owner's Guide" by Bill and Kathy Love. It contains pretty much all you need to know when starting out. You can order it from Amazon here in the UK, or most reptile shops will stock it if you have a good one near you.