Pill vs iud

I’ve been on the pill (lo loestrin fe) for about 3.5 years. In the past year or so I have gained weight and can’t seem to get rid of it (diet hasn’t changed and I exercise) I am a lot more moody and irritable, my sex drive is like completely gone and when it is there I have issues with becoming dry quickly. The only good part is that I haven’t had a period in like a year lol I have my annual coming up and am thinking about trying an iud but want to know your experience! Trying to figure out if trying another pill would be better or switching forms is best!