I don’t believe that any professional financial advisor would disagree with the concept of not “putting all your eggs in one basket”. It’s a cliché, but it’s also a prime foundation for safety, not just in the share market but overall in putting your money to work for you.
It’s perfectly legitimate to have your money work for you to provide you with a safe and enjoyable life including indulging your fancies and having the occasional splurge to enhance your lifestyle.
If your investment account is modest it is remarkably easy to arrange a diversified investment by using managed funds. There are thousands on offer by competent and INEXPENSIVE fund managers, including those who offer “platforms” with a choice of well over 100 different funds.
It’s much simpler to allocate the task of monitoring your investment to a professional than to spend the weekend checking the portfolio which you’ve put together without advice.