i wonder this...i get the way things work in real life, but what if...
what if we kept our dollars in our own country and didnt let them get outside in trades or borrowing or investment. in other words our money would be good only in this country between our people. i figure that would make our money worth whatever the said people of the country said it was worth. of course we would have to be a self sustaining country with no outside help, but still thats a good thing. so ild still go to work, make x amount of dollars and pay 1 dollar for gas that our country produced because thats what we all said it was worth. same with food clothes etc......it would work, the key is keeping within our country.
in this imaginary setting i think we would all be ok.
This wouldn't work the way you're thinking because you're forgetting that it's the market, not some central authority, that sets the prices of goods and services. Those prices are set based on supply and demand for assets, commodities, goods, and services vs. the supply and demand for the dollar. The price mechanism is a way of determining how much these things are worth in comparison to each other and in comparison to the money supply itself, and it's the way the economy can fairly decide how much each person can afford based on how much wealth there actually is to go around. If more dollars are created, prices of everything else naturally go up because there are more dollars chasing the same amount of everything else. If a central authority implements price controls to "fix" prices at unnaturally low levels, the end result will be shortages, because there won't be enough goods, services, etc. to go around at such artificially low prices. (And because people recognize this, they will hide their goods instead of selling them for prices far below what they're really worth.)
In other words, hyperinflation can still occur in a completely isolated country.
actually, the printing of money and the creation of debt would not even be so bad were it not for the INTEREST we must pay on the debt!
a good deal of the work we will all be doing in the foreseeable future will only used to pay for the interest of the trillions we owe. this is money that goes oversea and is bye bye...
I agree this is one of our three biggest economic problems, but there are two others. Although the Fed refunds interest the US Treasury pays it (minus operating costs), the Treasury still has to pay tons of interest on treasury securities held by foreign banks and private individuals...and as you said,
that's a whole lot of money, and it's slowly killing us. (As a side note, although the Fed refunds most interest the Treasury pays it, it
keeps interest it "earns" from loaning funny money to private banks, and it's a huge moral problem that we allow private bankers to profit from money they create entirely out of thin air rather than from loaning out reserves.)
The second of our three biggest problems is that we allow our government to recklessly borrow more and more money in the first place, interest aside. Regardless of who is willing to lend the money by buying bonds and such or how high/low/nonexistent the interest may be, the whole population must eventually pay for the government's irresponsible borrowing habits. These first two problems could be fixed by having the government
itself create currency out of thin air (rather than having to borrow money from a quasi-private central bank to do it). After all, it doesn't look like putting the reins in the hands of private bankers has fulfilled its supposed original intent and prevented the government from printing money constantly to finance its budget.

However, even that does not fix the last of our three biggest economic problems...
The
other biggest problem I'm referring to is just the simple fact that the money supply can be manipulated at will in the first place. People are basically forced to use US dollars, yet the purchasing power of their current holdings is constantly being debased by inflation, and this discourages saving and incentivizes unsustainable "borrow and spend" habits on the microeconomic level...and because prices also increase much faster than wages, people cannot just catch back up by earning new money, and their living standards continually deteriorate. This problem alone is enough to destroy a middle class and even destroy a currency. The other two problems do make it happen a whole lot faster though, and they also put the wealth we have left at the mercy of the foreign bankers buying up our debt. :-/