Start a grammar memorization card system or book system. Space out your studying. Get a newspaper in the language. Read one article at a time. Look up all puzzling verb forms and add to your grammar memorization system.
Consistency is the ticket here.
When you encounter a word new to you, say it out loud. Look at the English equivalent, but don't say that out loud. Add each new word to your set of flash cards. On the reverse side of the card, write a sentence or phrase in the target language. The sooner you are able to write sentences, the sooner you will be using all of your language ability.