The advice to invest in yourself and do some reading is a must if you want to make the most out of your savings.
You also need to decide how much time you want to spend on managing your investments. If the answer is not much, then one option may be a mix of low cost equity index and bond funds which you purchase each month on autopay. At some stage buying your own home may be a good idea if you plan to stay in one place for a while.
With a lifetime of bad investment decisions behind me, drawing up a list of things NOT to invest in would also be a worthwhile exercise - there is not shortage of people out there who will try to persuade you to "invest" is products that are designed to put commissions in their pockets rather than enhance your wealth. Funds with sales charges, real estate in places you have to ask Siri to help you find, art and other exotics, insurance linked investment schemes and cryptocurrencies should all be avoided.
At the end of the day, it's taken me far too long to realise that successful investing is not about being clever but simply avoiding making too many dumb decisions.