Can I add a webpage to my Home Screen?

Yes, you can.

1. In Safari, go to the web page you'd like to save
2. Tap the Share icon (the square with an upward arrow)
3. Tap Add to Home Screen (if Add to Home Screen is not available, tap Edit Actions, tap the "+" icon next to Add to Home Screen, tap Done)

Quoting 6x6:

if Add to Home Screen is not available, tap Edit Actions, tap the "+" icon next to Add to Home Screen, tap Done

Please see #3 again: it describes what to do if the Add to Home Screen is not visible.

Don't feel bad about it: we are glad we could help you with this and that you could achieve what you wanted to do.