I want my parents to get divorced?

You are right; most marriages aren�t perfect and all have problems. And many have "problematic periods" that seem unsurpable. Happily, many couples are able to find the remedy, and any help would be wellcome, especially from their own mature child. Find the right time and place to tell them how you feel ( unselfish about your brother) and offer to do whatever you can to improve the situation. Remember them that it takes two to tango. Luckily and accordin to you they won�t get divorced before your little brother is of age.