Will probiotics cure all of my issues!?

So I have the following main issues:

Bad back acne/scarring Rosacea Recurrent UTIs Causes: Not eating Only drinking sugar and no water all day Sex Stress Holding pee Not pooping Not peeing

I'm not the healthiest person but I don't think my lifestyle should cause this much turmoil. I hate my body and hide my back, I've never seen my skin clear, and I've always had UTI problems. Probiotics were mentioned to me, do my issues really seem like they would help?? Does it sound like i have a fungal problem?

Has anyone else taken them for the issues I've mentioned above combined with success? Is there anything else better suited?

Very grateful for some input. Thank you.