Let me emphasize that diversification is a critical component within your IRA and any other funds you currently hold. Also keep in mind that because of your age, you have a long-time to ride out any market up's and down's. Finally, work on the IRA first and then place any other discretionary funds into a well-diversified portfolio. I'm single and childless. I want to retire next year and have my funds in an IRA that I direct and control.
Nobody ever explains how to do that.
Instead you just get the basics of the different types of IRAs. However, I would strongly recommend that you ascertain what your income and expenses will be prior to retiring early. Keep in mind that you have a high probability of living into your late 80's. Some experts would indicate that the amount you have saved in your IRA is not enough to keep you living a good quality of life in retirement. This publication will highlight how you can handle a transfer of IRA funds.