I know fish bone broth must be an alien concept to you after being vegan!
The trouble with a vegan diet is that to be healthy you have to consume vast quantities of food, which can be incredibly expensive.
If you look at what a gorilla eats you will have some idea of the quantities you should have been consuming. The thing is a gorilla has a huge stomach compared to a human, so as a human you need to juice like crazy to obtain the same vitamins and minerals as the gorilla but without all the bulk.
It is possible to be an extremely healthy vegan but most people do it wrong and their health gradually suffers over decades and leaky gut is one of the common problems (in some vegetarians too.)
All the best. X