Have you set any New Year’s Resolutions? These are promises you make yourself usually to start doing something good, or stop doing something bad.
To be serious about your English you could promise yourself: ‘I will study English for at least 30 minutes every day’, or, ‘I will learn 10 new English words every week.’
If you write your resolutions down on a piece of paper and put the paper in a place you will see every day, for example, on your bathroom mirror, then you are more likely to do them! Also, if you make your goals specific and realistic you will have a better chance of succeeding. For example ‘I will study English more’ is not as good as ‘I will join NELS in January’!
Do it! It’ll be good for you! Let us know what you will do.