I lost my orgasm.

I really, really need help because I have no idea what is going on. 

Long story short, I have not been able to "get there" since breaking up with my boyfriend almost a year ago. Not with anyone else or even by myself! We were pretty serious and I was devastated when we first broke up but it's been a little while and I feel okay now so I'm not sure why this is happening.

Does anyone have any advice or ideas? Please share. :(