Help! I need somebody...help!

Hi! My name is Carolina, I'm from the south of Spain, I'm 30 years old and I'm a biologist. I'm a beginner in this (maybe just say "I'm a beginner here" or "I'm new here") and I really don't know if I'm writing well. I want to speak English with someone who wants learn Spanish or someone who wants to help me. I have to say that I'm a little bit shy but my necessity of learning (more natural to say "my need to learn") English win ("win" is not really correct here, although I think I understand what you mean - you need to learn English, and this need/desire is stronger than your shyness). I hope to learn here but also make friends.

     My name is Carolina. I'm from southern Spain. I'm thirty years old, and I'm a biologist. I have just started to learn English, so I can't tell if I'm writing well or not. 
     I want speak in English with someone who wants learn Spanish, or simply someone who wants help me. I admit that I'm shy, but that won't prevent me from learning English.
     I also hope to discover new friends here.

     You are writing well for a beginner, Carolina. I am studying Spanish, and I may assist you with your English studies. Feel free to contact me any time. Good luck. 

Hi, 

Generally it's all pretty good. Just a couple of key points:

When in Spanish you say "soy principiante" or "soy biologica", in English you need to add the indefinite artice "a" or "an" (an is used when the proceeding word starts with a vowel or an h)

The other point was just a slight word order issue. We'd usually say "I don't really know......"

¡Saludos!