Hola Pip
Welcome to our community, great to have you, beginner or not, we will enjoy your journey and laugh together, I too was a beginner last year, I had a terrace garden when I lived in town, had great success there but now the scale is much larger.
You will have fun growing your own produce and I look forward to helping you where I can, the best way forward is to have a plan of attack, patches where there is sunshine all day, choose which plants can or cannot survive the heat, what is the soil like, test the ph and add what is necessary for your plants to survive, we have very clay soil here so we mix sand and compost with it before planting, we have had great results with this technique, we have boards for soil types, where to plant and so on, so don't worry!
We also have a blog which you may find informative and helpful
Gardening in Andalucia, Spain Friendly tips and advice, share your garden with our community
Look forward to chatting with you soon and if you need any help, give us a shout
Simone (The other Campo Girl)
General Gardening Spain