First post ever!

I am in a funk. That is simply it. I have gone through the last 2 weeks in a funk - an unproductive, lazy, helpless funk where I eat way too much, watch Hulu instead of working on my grad applications and generally whine about my life which isn't half bad.
I am not remarkable. My story has it's interesting bits but I'm sure anyone with a decent grasp of the English language can spin their life into a gripping tale. Here's my shot at it.

I'm in my mid 20s, applying to grad school in the biological sciences after 2 years of work and various internships and jobs.
I didn't initially want to go to graduate school. After my bachelor's I was pretty much set. But after a while doing research jobs/internships I realized, 'Hey, there are some things I am interested in and confident I want to pursue.' To 'pursue' anything in the sciences you're going to need more school. I started looking at grad programs and emailing people and getting some goods responses. So here I am, in the middle of applying and I realize I have entered a pretty cut-throat game a total noobie.
The whole world of academic research was completely unknown to me as an undergrad. I didn't know how grants, tenure, fellowships, stipends, graduate committees and publishing worked. I picked up stuff along the way; I gathered each new bit of information and slowly constructed this world of which I now feel I know how the gears fit. It's a strange world and I'm sure it took a while to develop the current hierarchy and procedure. And alas, though I find some academic rituals unappealing I am throwing my hat in the ring!
It's kind of exciting to enter this game. My scores are not grand but decent. My experience is awesome so I am banking on that to win me a spot somewhere. I don't know who I am up against 5, 50, or 500 applicants?? People with 3.9 GPAs? Research on exotic jungle diseases? An internship at Fermilab? Yeah, I won't stand a chance. I've been told I undersell myself. I know I have some things going for me but I am also not ignorant of the many other accomplished peers I grew up with.
I think this is partly what's gotten me in this funk. I frequently feel as though I am not good enough. And that so many other people are ahead of me in the game...

It's midnight on a Tuesday night and I am not in the best of moods (for many reasons). I will end on a good note though. I may not be a genius but I do have curiosity that extends to most subjects. I think I can be persistent and I put a lot of effort in things I find worthwhile. There's a quote somewhere about how brains can only get you so far but in the end it's about effort and work. That one, let's end on that.