I don’t know what to do about this UTI, pls help!

i-don’t-know-what-to-do-about-this-uti,-pls-help!

I’m not sure what I’m looking for, maybe just someone to tell me to chill out and calm down, I don’t know. But I have had a UTI for about a month and a half now. I had been taking an antibiotic every time I had sex for prevention but I still got one. So I tried taking a bunch of garlic and d mannose but it wasn’t going away. So I got a round of antibiotics, but it still didn’t go away. So I kept trying garlic and d mannose. I just finished my second round of antibiotics and it still won’t go away. The symptoms aren’t that bad and have relieved some. But it’s still lingering. I’m just taking D mannose now and try to drown myself with water. I’m just afraid if getting sepsis and dying. And I think I’m working myself up way too much with this. What is the chance of developing sepsis? How much should I be stressing?