Thank you helpful users, especially @Golden Girl, @Isn31c, and @Helen for all the feedback and support. I just got back from my 15 day first trip abroad. We went to York, Whitby, Conwy, Abergavenny, Crickhowell, Bristol, Dartmoor, and Cornwall. In Cornwall we had an airBnB in Truro that we used as base to visit the Lost Gardens of Heligan, Tintagel Castle, Newquay, Mousehole, and Penzance.
Hidden Gems
Newquay is a great beach town with a hip, young and friendly vibe. Dads chasing kids on the shore, people swimming around boats, young people working in shops and rescuing birds. Great vibe.
Monmouth Brecon Canal between Abergavenny and Crickhowell is a flat and beautiful walk. I really wish I had more time for hiking here. Wales in general was so nice. Bodnant Garden out of Conwy, Conwy Castle and the town, Llandanado, all of it is worth your time. Strangers are friendly and chatty. Great food too.
Bristol is a really cool fun city. It reminded me of San Fran and Seattle. There is street art on every building and all of it was good. People are super friendly. Great music scene. We went to a place called Wake the Tiger. 10/10 recommend for something really different and fun.
Postbridge in Dartmoor. I want to go back to Dartmoor so much. We did Rick's drive outlined in his England book, walked up a tor and saw the ruins of a bronze age fort. Stop in Postbridge and walk over the stone slab bridge. Get a cream tea at the little cafe next to the tourist office. There is a great little hike right by the tourist office that takes you through a bronze age village and burial cairn. So cool.
It was my perfect trip. I met lots of friendly people, walked miles everyday, ate great food, and saw tons of flowers, birds, and countryside. It made my hobbit heart full.