Hello Joyous,
It sounds like it is time to start adding nutrients. Depending on the veggies, you probably need more supplementation that worm tea alone. Adding a liquid seaweed and fish emulsion can hep fill in the gaps.
As far as worm tea goes, you can find powders that can be mixed. One product called Xtreme Tea Brews has been good for me in the past. In the future, you can set up a composting system or a vermicompost to provide you with your own tea. I’ve included links that should help.
https://www.planetnatural.com/product/organic-fish-seaweed-fertilizer/
https://www.planetnatural.com/product/xtreme-tea-brews/
https://www.planetnatural.com/product-category/organic-gardening/composting/worm-composting/
Happy growing!