Hi,
I don`t no Ibiza, but I no Spaniards, well I kinda no how they think, I think.
My OH is Spanish and we lived and worked in Spain.
But my OH still leaves me stcratching my head sometimes.
Anyway my advice would be too.
Don`t take Spanish lessons in a conventional way.
The last thing you want is to make friends with fellow foreigners. You`ll alieanate yourself from your fathers family and possible your father. After all you are a relative stranger. You need to show your commited to learning about him, his family (Yours) and the culture.
Ask him if any of the family or friends can teach you English first, if not many regions collages and Universities run a Language Exchange Scheme that allows students of all language levels to meet up, usually in a bar or cafe, you then exchange languages, for free, one day you all speak English, the next you all speak Castellano. It has worked well in Madrid with many students learning very quickly.
You`ll also meet more Spaniards than if your in a class of Expats and one Spanish teacher.
Here are some links for Schemes in Spain, try to find one in Ibiza.
http://www.youtube.com/watch?v=HNbHtJQFOFY
http://www.intrades.org/articles/111/Language-Exchange-in-Spain?
http://www.facebook.com/group.php?gid=19988858992
http://www.elmundo.es/elmundo/2006/05/09/ciudadanom/1147195860.html
http://www.abc.es/hemeroteca/historico-03-06-2007/abc/Madrid/aprender-ingles-gratis-y-en-el-pub_1633486436290.html
http://www.youtube.com/watch?v=jAqCBdk6EAw
Speak to your father about how you feel, suggest a meal or gathering of people. He, if he cares will start getting you into the Spanish way.
It has to come from you, you need to push it, as far as your family are concerned, apart of your father, you are a stranger and one that they probably don`t care much for.
Give it time, visit them, take cakes always, it is hard when you cannot speak the language. Spaniards don`t realise this, for them there is no shyness, they`ve probably never lived away from Spain, so they don`t think about it.
If you make an effort you`ll be rewarded, standing around smiling in silence won`t be appriciated. Even if you make mistakes, laugh at them, they won`t judge you, they`ll like you for it.
My first Xmas meal with my fellow Spanish co workers was in a resturant, the guy I was sat next to I had worked with, he knew no English at all, but we always managed to struggle through.
He`d told me about his girlfriend some weeks before, she was goin to Paris etc etc.
So I decided to ask him how she was, but I always get my mascaline and femining rules mixed up.
So in front of everyone I asked him how his BOYFRIEND got on in Paris. I thought he was goin to hit me, the other guys were on the floor laughing so much, his face was a picture and I kept repeating it, until they explained my mistake.
They loved it, they joked for months after.
Nobody got upset and it broke a lot of barriers.
So no matter how stupid you feel, just jump right into it.
Give it time, Spaniards are as tribal as every other culture, there friendly, but even Spaniards from other regions around Spain find it hard to intergrate into close groups of strangers.
Although as a family member there usually more welcoming than you have described, but that probably down to your nationality, if you`d come from Spain it would have been easier.
But as long as you don`t start mixing to much with other foreigners you`ll be fine.
Enchufe is king in Spain, basically you get stuff by nowing others, the I`ll scratch your back, you scratch mine is very strong in Spanish Culture, ask your father if he nows of any jobs goin with any friends etc etc.
Don`t mention the word Enchufe, its more a macho “I can acheive anything, if not, I know a guy who can do it” culture. I`m sure a favour could be made to help you out and working for someone could be a good way in.
Good luck, stick with it, you`ll be fine.