27 and no libido
I've been with my fiancé for almost 7 years. I have been on the depo shot for BC for as long as I can remember. Before I started grad school our sex life was great. Obviously the stress of grad school put the kibosh on sex let alone life in general. Throughout grad school I have also been on Cymbalta for depression. Now that grad school is over I'm beginning to step down my Cymbalta. I have not been on the depo since Aug as I was temporarily uninsured and couldn't afford the shot. Being 27 with no libido is not what I call fun but I am not sure where to turn for help. Will my libido came back?? Should I talk to someone?? If so who?? What should I do?? I feel hopeless

Know that you're not alone. Many women in the 20's, 30's and 40's experience low or no libido. And, there are many culprits: medications, lifestyle (school, hectic lives, etc.), psychological factors, etc.
It seems you've tried to change the medical aspect by going off Depo and changing your dosage of Cymbalta. This is a great first step. Trying this for a while can help (talk with your doc about the time period he/she recommends to notice a difference). If not, it may mean changing to another medicine. Next, I would suggest looking at your lifestyle. Are there things you can change that will make you feel more of a drive? Perhaps your work/life balance, doing things that allow you to embrace your sensual side, etc. Then, tackle these one by one and see if you feel any better. Are there psychological factors at play? You mentioned not being about to afford Depo. Is concern over pregnancy subconsciously putting the kibosh on your sex life? If you notice it's a lifestyle concern then a sex coach like myself can help. If it's psychological, consider seeing a sex therapist.