Try to find a boyfriend / girlfriend who speaks that language. She /He can help you to improv your that language learning fast.

Make it a habit. Like cleaning your teeth. Then give yourself fun things to do around it. For me that is watching old movies in Italian. I also like to cook so I watch Italian recipes on youtube and then I makee them. Make it fun and remember there are no bad students only poor teachers :-)

I recommend spending your spare time looking for cool things that are only in that language. I look for bands, movies, books, games, etc. By making it so that you have many things to do for fun with that language, studying becomes enjoyable instead of feeling like work. Also, set yourself really short-term goals. Like, "this week I'm going to finish this chapter in my book." That way you feel like you are constantly making progress.