Are there any fun jobs that i can do when i grow up?
I would say just choose something you are interested in. I think you may find that you need to compromise a bit regarding the fun and well-paid bit. You say you want to work with animals, but a lot of work with animals is not that well-paid. Obviously being a vet will be, but I have friend who work in a conservation centre and another works with the RSCPA and the money is not great. You say you are into business so maybe you could combine the two, but bear in mind that business is not fun all the time. If you ran your own business there would be a lot of paperwork and boring admin to do.