Hi Jodey - welcome to the forum. You will find many people on here who are asking the same question so a good search of the forum will give you a lot of information.
Firstly I would say that 10 months money is not enough - I would say at least 2 years if you need to find work. Unemployment is over 20% on the Costas and you will find that the main work for expats is in commission-only sales, unless you have a particular skill. Many opt to work self employed but it costs a lot of money for Social Security payments, whether you are making money or not. You will find lots of people just getting by with cleaning and property maintenance but most are working illegally.
I would suggest that you take a few holidays to places which interest you and see how you like it before making any committments. Here in southern Costa Blanca you can get a long let from about 300€ per month plus utility bills so that should not be a problem.
If you are really serious about coming out then it is important to learn the language - that will give you a distinct advantage over other expats, although you will never have the same opportunities as native Spaniards.
Good luck and let us know how you get on!