Don't worry. Many native British people don't know what a preposition is and as for those Colonials across the Atlantic, I give up! Rather than attempt perfec

Don't worry. Many native British people don't know what a preposition is and as for those Colonials across the Atlantic, I give up! Rather than attempt perfect grammar (if there is such a thing), I recommend you find a writing/speaking style you find comfortable with. This might mean using interesting idioms (where most natives would use cliches) or 'talking in writing'. Consider these two alternatives:- (a) Use short sentences. (b) Here's a thing you could try. Brief sentences with just one thing in them at a time. Vocabulary will always help, but sources can be peculiar (dumbed-down or deliberately off-centre) or jarringly out of date. All in all, people are more interested in what you have to say than picking out silly non-conformities. Read a few news or Wikepedia articles in English you might fancy comparing with Hebrew to get the flow of sentences. Good luck. Good reading. Good writing. Good conversation.