It is a difficult choice to make. I personally want to travel to America.
German is an interesting language. It depends on your goals. Recommend you watch a movie in both languages and make a decision.
Iban is an interesting language. There are 790.000 native Iban speakers according to Wikipedia.
Many people don't realize that it takes a lot of time and practice to learn a language. You can improve your language skills by reading books, watching movies or speaking with native language tutors.
I have learned English in school. I practice the language every day.