Low sex drive

Hey girls. So I’ve been having trouble with the obvious^ and I feel like it’s affected not only my past but also my present relationship with my man and I’m just at a dead end and it makes me feel so shitty that I can’t get control of it. I have a thyroid condition which can affect my sex drive but other than that I don’t know why else I’m feeling so unmotivated to do the deed. It’s 100% not my boyfriend. I know because it’s gotten to the point where I don’t even masturbate anymore. I don’t know what to do. Any advice to fix or at least improve that would be really appreciated. I’m hoping I’m not alone lol 😬