itsjennetic

I'm sorry to hear about your struggles. This is just coming from my experiences, so make of it what you will. 
Unfortunately GPA is very much a consideration for potential grad students. However, A solid GRE(as high as you can) will alleviate some concerns over your GPA, or at least get your application past initial glances. Every school is different so just focus on improving what you still have control over.
In your case, and probably every other case too, I would definitely ask your letter writers for advice on programs and PIs with related research, It's mind boggling how chummy PIs are with each other even across the country(internationally too!). As much as you'd like to think connections don't play a role in the process, they do have some sway, and in your situation(still not a bad one btw), having a recommender that knows faculty in a prospective program can warrant your application a second look. Just relax and try to convey your love of research(specifically research not just science in general) through your application. good luck!

I am in a similar situation that you are in. I have an overall undergrad GPA of a 3.14 but I'm still applying this cycle and to some higher ranked programs. My advice to you would be start thinking about these questions first: is your undergrad research relevant to what you want to do grad school? Can you make a high GRE score to make up for your lower GPA? What is your major GPA? Is it an option to enroll in a post-bac or masters program? 
If the answer to the first two is yes, and you have a high major GPA, then I would say go for it this application cycle! If you've never applied before it'll give you good practice for your next attempt (assuming you don't get in), and you'll figure out the rest in the mean time. If you don't get in then you can further think about the last question and start exploring your options. You'll figure it out as I had to do after I didn't get in the first time I applied and then enrolled in a post-bac and am feeling more confident. 
A low GPA is something that can be explained in a personal statement and from what I've seen many people still get into higher programs with a lower GPA. In my case, for some reason, I don't do very well in lower level classes, but if you put me in an upper level/graduate course I excel. This is my reasoning for a lower GPA and if a graduate committee examines my transcript they will see this is definitely the case. However, they will not necessarily know to look into this unless I highlight it in my personal statement. So for your case, make sure you clearly explain that clinical depression and anxiety hindered you from doing your absolute best for xyz semester... also talk about this with your letters of recommendation so they can reinforce your reasoning! I hope this helps! 

Also... not exactly related to your experience... but there is a sub-3.0 acceptance thread in the lobby. And while you have a 3.2 gpa, that thread has a lot of great advice on how to accentuate certain parts of your profile, and overcome a lower gpa for your field.