but something inside of me says "be patient things will get easier soon"... the problem is I've been patient enough and I just can't stand this anymore
I mean this in the nicest way, but this is the absolute worst approach to life for someone in your situation. The key to a successful and happy life is making changes/decisions that put you on the right path. Then you keep at them until they're habit. THEN you play "be patient, things will be better", then when the time comes and opportunity hits, you make more changes/decisions to make the most of it. You make a few key decisions, I call these points "course corrections" personally, and the rest of the time go with it.
However, you're still sat on the bench. You're not leaving the house, you're not working. There's nothing going on. Doing nothing in that situation guarantees the ONLY thing that's changing is you're getting older. Thankfully at 21 you're still a long ways off this being "too late" or "inconvenient".
I'll give an example in my life (27 at present). I live in the UK and since I finished school (at 16) I've wanted to move to California and be a big-bucks programmer. Now, getting into the US to work when you don't have family or a US girlfriend is REALLY hard. So I made a plan.
First step was A levels at college, to get into a University. I pick a college, I pick my lessons. Then it's 3 years of "be patient".
3 years. I'm 19 and have my A levels. Now I can get into the university. I pick the degree I want (computer science) and the university. Then another 3 years of "be patient".
2 years into that (21), I realise I can really boost my chances of getting into America with a masters degree, so I change course slightly, and upgrade from the bachelors program to the masters, so I now have 4 years at uni instead of 3. Back to "be patient". Age 23 I come out with my masters.
Age 23 and with a degree, I find a small startup company in my local area that's planning to expand to the US. I put my dreams of living to the US to the side and kick ass at my job (which I love btw). After 3 years they start to put together a US development office. 6 months into that I take a manager to the side, make my latest course correction, and tell him I want to help them grow the team out there.
I'm signing the transfer papers next month and will be living my dream by the end of this year, six figure salary in what I think is the coolest place on Earth. From age 16 to 27 (11 years, wow) there were 5 points where I had to make a choice to get to "the next step".
But if I didn't make that decision to go to college 11 years ago, I wouldn't be where I am now. I'd still be at home dreaming about "what could have been".
So, back to my original point, this bit of your post:
but something inside of me says "be patient things will get easier soon"... the problem is I've been patient enough and I just can't stand this anymore
You need to figure out what you want. You need to figure out the steps to get there. You need to start step 1 TODAY and THEN you start playing "be patient" where you keep at step 1 until you get the chance to go for step 2.