I'll share the following post:
https://www.splintertalk.io/@unitqm/starting-out-in-splinterlands-day-4-qze8cn
@unitqm is a great member of the community whose posts are worth reading in general, but I like this particular series as it goes through the new player experience from the perspective of a long-term player. It's even different from what I went through after joining the game a month and a half ago just because of the lack of quest potions and (until very recently) the dwindling supply of reward cards. It's very interesting to see how quickly the inital experience is changing and how little there is to do with the limited resources of a beginner.