The main thing is that your first 2 GGL space release redemptions (Jokers) will expire at the end of your current exec club year so make a couple of avios bookings far in advance now to use them. If you wish to change those bookings in the future you will retain the Jokers. When your year rolls over (i.e. 8th March) you get 2 new ones to use.

Also call the GGL line and give them your Hilton Honours number and ask to be put on the Hilton Diamond list. Ask for the GGL team email at the same time it makes life a bit easier.

Not really any rush for anything else, if you are nominating partner cards try to nominate just after the card expiry date for your nominees (e.g. if they have an exec club year end 8th June nominate on 1st August and they get almost 2 years status; nominate 1st August 2024 and their card expiry date will be 31st July 2026). Please note that you will not receive any more partner cards until your next year rolls-over (i.e. 8th March 2025) assuming you have re-qualified as GGL (this is different from the situation with Jokers, as described above).

To my mind, using the CCR when flying Club Suites LH is a bit of a sweet-spot for GGL. You are effectively guaranteed your first meal choice, a pleasant chat with the CSD, a good seat/bed on board, and use of the CCR outbound and whatever FIRST dining is available inbound. That, and CCR entry on domestics/SH. You are expected to contribute to the CCR menu thread with lots of photos and meal choice reviews.

Get those GGL tags on your bags, order a few extra to sell on eBay, and stand by to be picking rose petals off the soles of your shoes for a while.