Hi jacquilm,
It's really hard to know just what to advise you because there seems to be so much of everything already here. ( I mean on CB )
There are several gyms in my area ( Playa Flamenca ) and I know of a lot of fitness and pilates classes, even one on the beach!!
There are 2 wedding planners around here, admittedly they charge a fortune, but are used by English mainly.
There are quite a few beauty and alternative therapy businesses too. Chiropidy and accipunturists and massage stuff too.
I don't know about childcare, except for nurseries and creches but the Spanish look after their own kids in extended families.
It does appear to be quite difficult to get work here. Perhaps teaching English would be a good idea if you can get some qualification?
In any event you will definately need to speak and write fluent Spanish.
Good luck.