Many. Think of it like real life if you were starting in medieval times.
You could dabble in many skills or focus on one. Elyria doesn't limit itself to categories either. You could master smithing a single item long before you master the craft. There are countless ways for players to stand out and offer something unique in CoE.
Skills will have varieties of soft caps introduced from life to life. May take you several lives to become a true master.
If you want an idea of some of the vast range of professions, check the store and look up the kits ;)
Read the design journals. Looking awesome.