Tick anything you already have, in any order. Quests unlock once this is done.
Nearly every gym gives you a week free and lends a gi for it. Atmosphere varies enormously between gyms, so try two if you can.
Find a BJJ gym near you3 things left above. Quests are real things you go and do, so they only make sense once you have what you need.
First one waiting: Survive your first full class