In addition to save scumming to get better results as others have said, the body horror stuff goes away after the intro and you end up in much more normal forests/towns etc. I definitely understand the difficulty of the mechanics for someone new to DnD, it is pretty complex relative to what video games generally expose to the player, but it also is mostly good about explaining how stuff works with the tooltips.
In addition to save scumming to get better results as others have said, the body horror stuff goes away after the intro and you end up in much more normal forests/towns etc. I definitely understand the difficulty of the mechanics for someone new to DnD, it is pretty complex relative to what video games generally expose to the player, but it also is mostly good about explaining how stuff works with the tooltips.