What are some ways to improve speaking and writing skills in English? Are there any recommended online courses or books for this purpose?

I know about online translators and I used one of them and to be specific one called Immersive translates and I can attest to it as the best. I had a lot of school projects and I really had to improve my English vocabulary to pull that off and immersive translates did the best work in helping me. It is absolutely free and user friendly and also uses AI,deepl and chat Gpt which makes it effective and reliable. Just have it on your device and you'll be more than grateful