This will sound very cliche, but the best thing you can do is to simply speak with natives. The purpose of a language is to communicate, so just use it as much as you can in as many contexts as possible throughout your day. When you can't do that, try to integrate your language goals with your hobbies. For example, I always play video games or read books in a foreign language to gain as much exposure to the language as I can. You can also talk to yourself as you go about your day; this will help you form sentences more fluently later.

First a small correction: There are many people who say that Spanish is difficult. But, why is English so hard? I only have a short time to practice and it is difficult. What recommendations would you give me? Comment: I agree with Lee. The best way to learn is to communicate as often as you can with native speakers. You can also watch TV, movies, etc. and listen to podcasts. Reading helps, but I think it's best to read about topics you really enjoy and already know something about. Then you will see how familiar ideas are expressed in the other language. Good luck with your learning.