It all depends on the effort you are putting in. The simple answer is surround yourself with French.
Listen to French as much as you can, podcasts, Spotify, news, movies, etc. You don't have to understand everything or most of what they are saying but listening will train your mind on the nuances of the French languages. While that is happening, speak French as much as you can as well. Even when you speak English, try to speak it with a French accent like you are auditioning for Emily in Paris :). That will train the muscles of your mouth/jaw to sound French. Listen to expressions that are common and keep repeating them and make them part of your daily use. Finally, teach French to others. It helps you with practice and it teaches others along the way.