You'll make more money doing it yourself. One of my friends has been traditionally published (as I have) for years and he decided to put out his own stuff via an imprint. He's selling more on his own than he ever did with the help of traditional publishing, much to the annoyance of his agent. Also, the publishing industry, like many others, is under siege and funding is a big problem right now. My new novel (my first for adults) was meant to be out yesterday and is now scheduled for October. With bookshops closed, it was the best thing to do. But you can literally stick your book online tomorrow and sell it. There's a lot of positives with self-publishing. A tip: if you want to keep your rights, Amazon KDP is supposedly a good route. They won't promote your book, but it will be your book and that's not something you always get from a traditional publisher.