Dictionaries are acceptable to use for one or two words; NOT to translate entire sentences or paragraphs. When writing, always start in the language you're supposed to be writing in. If you write it out in your native language first, you'll just end up frustrated that you can't express yourself as well as you would like to. Remember that part of learning in a foreign language is making mistakes!
Please watch my video explaining how to use Google Translate as a tool, not as a way to cheat.