Hello Lloattoughish87
OK, I see.
Well, yes, the Swiss Half Fare Card and a Jungfrau Pass makes sense. If you have children under 16 years of age, do not forget to request the complimentary Swiss Family Card so they can travel for free whenever accompanied by you.
To create an account, simply choose ‘No customer number’.
https://sbb-tickets.cc/de/angebote/swisspass-karte/register/1
Let us know if you need further help, that’s the purpose of the SBB Community.
Best wishes,
Roland