Ok, first of all, just cause I have to point this out, the word you want is debt - with a B, not dept - which sounds like a kind of store.
Debt is what you get when you shop in a dept store
Dept
Mortgage 137 597.47/138 160.27
Visa 2539.93/4440.00
Student loan 792.17/900
You will have a very hard time retiring while you carry this debt.
The FIRST thing you need to do in order to retire early is get your financial house in order - and that means getting rid of your debt.
You've got a mortgage that is not 2, not 3, but between four and five times your net household income. That's a big mortgage for your income. On a 32k income, your mortgage payment should be no more than $667 a month, including taxes and insurance. If your current mortgage is a 30 yr fixed at 5% (a great rate) then you're paying $741.67 - just on principal and interest alone.
So you need more income or less house.
On 32k take home, thats about 41k gross - once you get rid of your consumer debt (student loan and credit card), if you put 15% towards retirement (15% of gross), then you'll be investing 512.82/month. To retire at 50, you also have to invest AFTER TAX money, because at 50 you can't withdraw from 401k 403b or Roth plans w/o tax penalties, so on TOP of the 15% into the tax deferred plans, you need even more going into investments to allow you to live for 9.5 years (age 50-59.5).
So lets start with the tax deferreds. In order to retire, you need to have enough money invested where you can take money out of the account every year, but where the account still grows fast enough to beat inflation after your deductions. The rate of growth minus inflation is the amount you can live on at retirement (infl =4%, if your growth rate is 6% then you can live on 2%). If you don't hit those numbers, you run the risk of running out of money before you die. How fast depends on how much you take out over the spread - but regardless, it's always best to live under the spread.
So ignoring inflation for now - you need to be able to live on 32k a year, until the mortgage is eliminated at least - then you can drop out another $800/month or $9,600 a year. On a 30 year mortgage, your mortgage should be paid off JUST as hubby hits the 59 1/2 age, so once you hit full retirement, you now only need $22,400 a year.
Investing 512.82 a month, we need to determine what growth rate you need to be able to live on that rate minus inflation at 60. Since we fix inflation at 4%, your growth rate of your investments needs to be higher than inflation. So, lets start at 5% growth, which means at age 60 you'll live on 1%, and work our way up.
Growth rate - value in 30 years - 1% of that to live on
5% - $426k - $4,270 - not enough
6% - $515k - $10k - not enough
7% - $625k - $18.7k - not enough
8% - $7645 - $30.5k - enough!
So in your tax deferred plans, investing $512.82 a month, you need to invest in mutual funds (or some other equally good product if you can find one) with LONG TERM track records (since inception and > 10 years old) of better than 8%.
NOW lets look at 50-59.5. This problem is different. You need $32k a year (still have a mortgage), but for a fixed period (10 years to be safe - really 9.5).
So that's 320,000 you need in total.
Assuming we start with the same investment vehicle - the 8% mutual funds, now we know the target, and need to determine how much a month you must invest with purely after tax money to get to that point.
At 8%, starting today you need to invest an ADDITIONAL $550 a month for 20 years to have $320k saved up for the 10 years between 50 and 59.5 to retire that early.
At 9% you need $480/month
At 10% you need $430/month
At 11% you need $380/month
At 12% you need $325 a month
More than 12% is getting very hard to find - 12% can be found, however. (Federated Kauffman K for instance)
Now lets go back and look at 12% and its impact on age 60. If you invest in products at 12% for the tax deffered, by 60 that money will be over 1.7 mil and you'll have $143k a year to live on. The problem, of course, is you can't touch that till 59 and a half...but wow that's some money.
It's the age 50 goal that's going to be hard to achieve. On top of the 512 you already should put towards retirement once you are debt free that's another $325-$480/month. That puts your retirement investments at a minimum of $837 a month - and now we're talking more than your mortgage payment.
So - with your consumer debt, with the size of your mortgage, and your current income? Retiring at 50? Not going to happen.
Get out of debt, get in a cheaper house, and it's feasible - but will require a LOT of saving. Get the income up, and it'll get easier.