I'll preface this by saying that I am not an accredited financial adviser; however, I do have a ton of experience in this area, seeing as it is directly related to my degree and chosen profession.
First, please don't buy gold unless you're planning on running arbitrage (which is buying gold where it will be cheap and selling where it will be expensive, this requires a ton of information and is risky) or are skilled in short term speculative trading (which, by your post, you likely are not), because you probably won't come anywhere close to catching the market, much less beating it. Gold consistently underperforms in the general market, and the only reason it is this popular as an investment is because...well, I'll leave politics out of it. Simply put, some people are stupid.
As for general advice, go down this list here. This is conservative advice: you will almost certainly make money, but not a whole boatload.
1) Pay off high-interest debt (credit cards etc)
2) Have a reasonable amount of money in high liquidity accounts (savings account) for emergencies
3) Invest around 70% of the remaining money in less liquid, but guaranteed, accounts as you see fit. These include CDs (Certificate of Deposits) MMDAs (money market demand accounts), T-Bills (debt instruments issued by the government). All of these are backed by the government, so it's a time/liquidity tradeoff for the cash.
4) Invest the rest of the money in slightly riskier investments, such as mutual funds, growth stocks, and corporate bonds.
If you want to be less conservative, invest less in the guaranteed investments and more in the riskier investments. I would avoid very risky investments (junk bonds, capital appreciation funds) until you know what you're doing.
Hope this helps!