ok... english...

What is ur first language? Writing is very crucial especially when u want to further study in tertiary level or even though in working field. But y must u mix up english usage with ur thinking? Act, I know every could be a good writer, (if u r writing in ur 1st language). Try think this way... think the point 1st then only proceed. My teacher used to teach me to start up a writing with a point must have, of course a point, explanation or elaboration adn some example. And it's work! Dun ever think about ur english 1st, the thing is whether or not u dare to write more... The moment u can write... the moment u will feel confident... My advice, write as much without thinking of the grammar usage (Dont mistaken, Im not saying to IGNORE the grammar, just for u,  the first step is to practice writing.)
 
Trust me, when u r surrounded in english environment, (eg u r in university), ur english would be better than expected.