Improving your English requires firmness. Since there are many ways to say the same thing in English, it is always a good idea to pick ONLY one way and remember it when learning how to deal with a new context. If you mix parts of different phrases together, the result may be incomprehensible. That’s something you should definitely avoid!
As your English improves, you will be able to add more variety of expressions to your repertoire, but to begin with learn your favorite way to say something and stick with it. Master one important and useful set of phrases before building new options. It will keep problems away!