I've been playing a survival world on my own and occasionally switch to creative, I think its fine because its single player, but my friend won't stop.
The official Minecraft: Guide to Ocean Survival will teach you how to breathe underwater, find valuable sunken loot and fight off guardians and other menacing mobs of the deep.
Survive 25 days, find coal/ make charcoal, make a stone pick, make a stone sword, make a shelter with a door, a crafting table, a furnace, a chest and a bed .
It makes Minecraft clearer, less obstructive, and more detailed than ever before. It's highly recommended for casual players, Redstoners, YouTubers, technical.
You could always build a barn style building near it and have it filled with storage, or a large basement system. It doesn't all have to be one huge sprawling.