switching again possibly iud

I’m thinking about switching bc once again. The combo pills have been making me either depressed and the second one I tried made me sick/dizzy and wasn’t getting wet easily enough for sex. I took a progestin only pill in between those and I got my period 3 weeks out of 5 one month so I stopped taking that too. Thinking about iud cause I here side effects are low and the cycles aren’t bad. I’ve always had irregular cycles up until about two years ago ( I’m 19) but like long cycles not short like that so I’m a little nervous and just want some verbal courage to get the fuck out there and get it! Thank y’all (also worried about insurance matters/coverage m, I don’t think my plan covers it)