For those who keep track of the real estate market, buying, selling, and renting property could be a viable financial investment. Not only will you realize capital gains if you invest in the right property, there is also the possibility of earning rental income. If you had purchased your property relatively early in your career, at retirement you may have paid off the property’s mortgage and so whatever rental income accrues is basically your profit (minus, of course, maintenance).
4. Immense choices - As mentioned before, there would be immense open doors at your doorstep. You can do whatever you need. You don't have to be an Ace in a particular field however you can be a Specialist in a specific field which you jump at the chance to do the most. In case you're great in keeping in touch with, you could make a digital book and offer it on the web, or begin a blog on a particular specialty or in the event that you are great in coding, you can outline site layouts and offer it online simply like consultants do.
As someone who's been immersed in a number of online industries for quite some time, I know a thing or two about what it takes to succeed in this arena. However, just like you, I started at ground zero with little knowledge, but a great deal of passion. What I learned along the way were some invaluable lessons from failure that hurt at the time, but helped immensely in the grand scheme of things.
Whether for high school students or adults, you can monetize your expertise by teaching people with less experience or knowledge than you in that subject area. You can work with an established group like Kaplan for, say, SAT tutoring, or you could try hanging out your own shingle and making your services known either to students, parents and schools in your community. If you are targeting adults, you can create your own website or list your services with adult tutoring companies.

Double check yourself, before you double wreck yourself. Make sure everything you send to a company, whether a résumé, an email or a portfolio, is good to go. Double check your grammar and wording, and for God’s sake use spell check! This is especially important when it comes to the company’s name. Don’t spell their name wrong and be sure to type it how they type it (e.g. Problogger, not Pro Blogger).