Word! Just because you aren’t a professional doesn’t mean you can’t have a good amount of talent in a subject. If you can provide quality services to people who can’t or don’t want to pay high professional prices, then go for it! That’s the free market right there. You have just as much right to try and make money for yourself and your family from your talents as professionals do.
Even though risk-taking is a generally rewarding strategy in your 20s and 30s, it's also a good idea to diversify your efforts. Don't build up just one skill set, or one set of professional connections. Don't rely on one type of investment, and don't gamble all your savings on one venture. Instead, try to set up multiple income streams, generate several backup plans for your goals and businesses, and hedge your bets by looking for new opportunities everywhere. This will protect you from catastrophic losses, and increase your chances of striking it big in one of your ventures.
Most of us are guilty of hanging onto things that we never use, myself included. Take a day and go through all your old stuff and get rid of some of it! One tool that is really helpful for this is Decluttr. You can enter your items barcodes into their valuation engine and they’ll give you an instant offer. Then you simply pack all your items into a box and ship them off for free.