More than enough hills for me. I really hate hills though, being both heavy and unfit, even a mild incline absolutely knackers me out and I hate having to stop. Hopefully a combination of strengthening legs and losing weight will make things easier.
Practise practise practise. It's the only way. You will get better. There's inclines I used to struggle to get up in the bottom gear of my mtb and now I storm up in a high gear on my roadie.

The other 4 I rode with today are all riding Lands End to Dover non stop (madness) I'm doing home to dover with them, not in their league yet.