Hi,
I will be travelling on a garuda domestic flight to Jakarta and then on an international garuda flight the next morning (having 12 hours connection in jakarta).
I will be overnighting at a nearby hotel.

Will I need to pick up my checked luggage when arriving from the domestic flight ?
When arriving at the airport the next morning, is there a possibility to check in additional luggage (internal Y allows 30Kg compared to 20Kg domestically) ?
I am travelling through Jakarta the week before as well, thinking about leaving a small 10Kg bag at the luggage storage for a week and then picking it back up when taking the international flight back out of Jakarta a week later.

Thx