Need help with my triangulate cobweb spider

Ive had a spider over my shower for at least a few months now and shes a triangulate cobweb spider and every time i shower its like she tries to move right over my head

Well today it came to a head (no pun intended) when i realized she was way closer than normal and too far from her web, so i turned off my shower so in case she fell she'd fall not directly into water and went to get something to hold her in safely while I shower and so I can make her an enclosure away from the shower, I came back and she fell and was all wet but still very alive!! Even though because she rolls into a ball when scared I thought she might not have been, anyway I got her into something as safely as possible and finished my shower and shes still ok how do I make a quick enclosure for her and can I take some sticks to move her bug riddled web into it? Also does the web need to be sideways or can i lay it flat??

Tldr: i need to know how to make a spider encloser swiftly and cheaply so my s. Triangulosa doesnt starve/drown

Also i know I probably should have moved her sooner but I was scared for her web and food source (she catches ants and i wouldn't know how to get them into her enclosure myself)