You should enroll in an adult education course, this would give you a good start. Busuu.com is a good website that could help you. As for it being difficult to learn, yes of course it is, it takes dedication to learn a new language, years of studying. The only way you will learn it is to study hard every day, it is the same for everyone, it is certainly not easy. One more piece of advice is, when you write in English, please write as grammatically correct as you can, if you make mistakes in English this does not help students who are learning English.