If struggling, watch a vid or two on the swamps. Too much left out here and wall of texts really don't help folks as much as seeing how stuff works. And one player's solution to a problem is not necessarily the way to go. We all have opinions but they don't necessarily work for others.
I would never put a shack on the ground in the swamp. I would drop a portal up top so I could go home and get a decent buff. And I would put a portal in a building of some sort just at the edge of the swamp in meadows or BF. Wouldn't bother with multiple picks, wouldn't race through till I found a crypt because what if there is none... wouldn't think much about fire geysers because that is just rng if you get one near you. It's like basing your fight on getting help from a troll, total rng.
In the swamps if you base your defense and life on luck as you run through, especially at the beginning, it's gonna be a sad time. So i dunno, if I was a new player and took most of these tips to heart I would hate the game, think everything was too hard and not understand why I was dead so much.