You said -
"I don't know why I'm in college. I have no career goal or dream job. I'm really not even sure who I am at this point."
Is it comfortable for you personally to not know? If you are comfortable with who you are right now the uncertain Kelsea, you are doing fine.
On the other hand, if you are worried about it then don't. Who you are now is good enough. Develop an equanimity about the negative feelings and kindness to yourself. In this world, there is too much harshness and very little compassion especially to ourselves.
Develop self-awareness. From experience, the only way you can develop self awareness is through meditation. The type of meditation where your mind is completely still that when you scan your brain under MRI your pre-frontal cortex show almost no activity. It is counter-intuitive, right? In these very intellectual times, especially in the western world, people try to reason their way out of problems but sometimesthe solution is to stop thinking altogether.
When you have practised stillness daily for a while you will realise how your mind works. Your mind will have the energy to not follow knee jerk impulses and remain centred. There are no short cuts I'm afraid. I cannot explain away how you can conquer your mind's short comings. You need to practise daily to see for yourself.
I can recommend some books to get you started.
Open the door to your heart - http://www.amazon.co.uk/Opening-The-Door-Your-Heart/dp/0733623115
(This is not meditation book but I think you should read this first)
Mindfulness, Bliss and Beyond - http://www.amazon.co.uk/Mindfulness-Bliss-Beyond-Meditators-Handbook/dp/0861712757/ref=pd_sim_b_2?ie=UTF8&refRID=1F4A427S7ARV1T4GJNBX
(This is more advanced. I recommend you read this only after you have read the first book)
Now, a little disclaimer, I am not a religious person, I don't believe in god, I know the books I recommended are written by a Buddhist monk. I'm not converting you. I'm not a Buddhist. On the other hand, I do enjoy learning about psychology, improving my life and others. My life is an experiment and I find that meditating (correctly) improves my life.