Sex in the shower??

Hey y’all so I’ve been married for 12 years been together with my husband for 14 in total . He’s the only man I have ever been with . All my firsts are with him so when it comes to overall experiences if I haven’t done it with him I’ve never done it at all kinda thing . So we have recently been taking showers together to spice things up and for the life of us we can’t do it . I’m 5’2 and he’s 5’8 so there a bit of a height difference . And I’m a bigger girl so I got a big booty . And we have tried for years to have sex in the shower but neither of us can figure it out . Couple nights ago we tried , we have a tile shower so it’s like a 4x3 feet wide tile shower with a curtain in the doorway and the shower head . And it gets very steamy in there and so I finally say fuck it just sit down and then that felt super uncomfortable because of how small the shower is and so they he said for me to lay down and everything kinda went down hill , I smoked me head off the edge of the step and then as I’m going down onto hard wet tile my husband slipped and his elbow went into my eye and now I have a slight black eye . It was actually comical how it happened but I literally said no more . But eventually I wanna try again but I need help . How do y’all have sex in the shower . Do I need to invest in like handles or something ? Let a sister out . Lol thanks in advance and sorry if it seems like a stupid cause . I’m not gonna lie I tried watching shower porn but most of the videos were of tiny chicks and the dudes would just pick them up