Well what sort of beater car do you guys suggest? I dont wanna spend over $4,000.

Civic

civics and corollas make great beaters

Ugh im gonna be so embarassed driving around a beat up old civic for a year, but it will be worth it so I can save $ for a real car....

Its like ill be 16 again, im 25 now, id like to progress with my life and get a sweet ride. My very first car was a 1996 honda civic.

nothing wrong with driving a civic around

Andddd that's why most ppl in America are deep in debt... Sigh

Bro, first and foremost, I am glad you were able to walk away from that horrific incident. That other person should be locked up for a long time for what they did to you and I applaude you for dealing with it the way you are. Also, still being relatively young and able to recognize that buying a 370 can put you in a financial position that could go south quick, is a good thing.
Now, you don't have to be ashamed about driving a "beater" for a year or so, to get your life and finances in a good position. Before I got married, I sold my cherished Evo IX and bought a beater to save for the wedding. I only spent 3k on a Honda Del Sol and drove it until I got married. It was crappy, but did have 202whp:)
Anyways, do what you need to do now, so you can do what you want to do later.....

I picked my 12 370z nismo 12500miles up for $19k

That seems way too low for 12' nismo. Rebuilt title?

Definitely not a typical deal though. Just saying there are deals out there.

Today was a crappy day. I decided to buy a bike off craigslist, I found a nice looking one for $180 it seemed ok, so I rode it around a bit, then stuff started falling off and the back tire broke.

So there goes $180 down the drain, looks like I wont be biking it to work....

....

Yeah I only live 4.5 miles from work, and Phoenix weather is pretty nice. So I thought riding a bike for a while would be a solid option. Looks like I will just have to use the Uber app. Its gonna be like $10 for a ride to work according to the app.

Scrounging every month to make the car payments is NOT going to be a good time. Anxiety about paying your bills is not a quality way of life...especially if you can avoid it. There are plenty of fun cars out there in every price range...don't **** up your life to satisfy your vanity.

There is plenty of time for you to save your money, and upgrade your life. I didn't get my Z until I was 29.

You can get a pretty decent car for 4K in the Phoenix market. I have been looking around for a bit too, and ive seen some nice cars for around that price range. When you look, look in the 5K range, because you can always haggle and get the price down.