Whenever you’re starting something new – starting a business, learning a new skill, playing an instrument, etc. – the first few weeks are exciting. 

It’s like the honey moon phase of a relationship. Everything is so new. It’s fun. It’s challenging. 

But just like the honey moon phase, it eventually wears off. Your motivation flounders. You’re stuck at a certain point. It feels more like work now. Eventually you stop working on your project as consistently and it’s gone as quickly as it came. 

Once you hit a barrier you’re done. You give up. Instead of pushing forward or trying a different approach you quit. Then you pick it up occasionally, wondering why you’re still mediocre. 

Try multiple approaches and techniques instead of trying one approach and getting bored easily.

When learning a language, you need to use multiple approaches. Use Duolingo for vocabulary. Listen to French music for pronunciation. Watch American shows in French. Movies in French. Use flash cards for memorization. Check out bennylewis.com. 
It helps keep you challenged but continues to be fun and exciting. It’s not the same old thing. It motivates you to learn more. 

If you’re struggling to learn some subject new don’t use one source to learn. Try many.