It's hard to give specific feedback with so little to work on. You should consider posting using the 'Case Study' format (see the sticky message at the top of the forum). It takes a little work to prepare, but the results are useful beyond getting feedback from internet strangers.
In general, people invest windfalls the same way they would invest over-time: in low-cost ETF's such as a Total Stock Index Fund (VTSAX or equiv), and Total Bond Index Fund. You might search 'windfall' on the forums, and read some of the resulting message threads.
[I would post links, but search isn't working for me right now, and I didn't want this message to fall off without at least 1 response]
The investment order I recommend to people is:
1) Max out your 401K contribution to get the dual benefit of saving pre-tax dollars, and reducing taxable income.
2) Max out your HSA account (must have a HDHP to have an HSA account).
http://www.madfientist.com/ultimate-retirement-account/3) Max out a T-IRA or ROTH IRA contribution. Since your income is currently DOWN, consider starting a Roth IRA.
4) Invest in a taxable account. You can always invest in a taxable account.
Also... set your investments up to DRIP - Dividend Re-Investment Program. Each stock trading company lets you re-invest dividends into the stock that generates dividends. In most cases, you'll have to manually specify you want dividend reinvestment for each holding in your account. Keep up the good work, and all the best!