If you want a stable income, freelancing/self-employment isn’t the way forward. You aren’t guaranteed the same paycheck every month, at least not without careful planning and hard work. Even then, unforeseen circumstances can make it difficult to sustain a stable income source as someone who is self-employed/a freelancer.
Fiverr can, however, work in helping you to build a stable income. The most important thing to remember is that it’s best to have several different income sources going at once. Don’t put all your eggs is one basket effectively, as is a popular phrase here in the UK. Think of Fiverr as one way of bringing in an income, but have other things on the go, too. I’ve been working on diversifying my income for a couple of months and it’s definitely made me happier when I look at my bank account.
P.S: Fiverr “fame” doesn’t happen overnight. Hard work, months of commitment, and a good knowledge of online marketing can really help, but it’ll be some time before Fiverr can offer you a stable income, if ever. You’ll have good and bad months (you often see posts about it on the forum), but the good months are what makes it worth sticking around to ride out the bad ones.