Learning anything is always a journey. There are bumps and curves in the road and things that at times make you feel as if you cannot move forward.
Learning English can feel like that. Its a complicated language that doesn't always make sense and just when you feel you have it under control there are those nasty exceptions to the rules that make everything you just figured out seem pointless.
But view it as a journey and focus on the pretty sights along the way. Stop and smell the flowers and look at the view, find something to laugh at and a memory to cherish.
Those are the things that will keep you moving forward on your journey of improving your English.