After you are sure about the basics or if you already know them, the next step would be to learn words. And then use the words to make simple sentences. Get hold of a site that teaches you Arabic in proper order. You need to remember the basic grammar and some words and phrases to start with. Pronouns form a very important part of Arabic grammar. So after knowing to read the language, you will have to start with these basic things. Also, you can see how to write numbers in Arabic.
One more option would be to buy a book that translates English to Arabic, so you get a better feel of the language. Reading from books is always beneficial. There are many useful books available. You will learn a lot of things. You can also buy some picture-based books. The kind of books we used during our childhood days. There will be a picture, and the name of the picture will be written in Arabic. To know the language properly, you must know the Arabic version of the things.
After the grammar, the basic words are sorted and you can start with framing sentences out of it. We always used to do a ‘make sentences’ exercise in our school. This will help you here also. Try to make sentences of different words on your own. You can always use the internet to correct yourselves or search for any word.
Make sure you do reading as well as writing. At this point, you can start listening to basic conversations in Arabic, because now you would understand them, and also know how to frame sentences in an improved manner. Watch videos as much as you can.
Revise, revise and revise. I tell this thing in every blog. If you do not revise what you have already studied, you will be back to square one. And for revising plus studying ahead you need to remove extra hours to dedicate to Arabic learning. You cannot be stuck in the same place. You have to learn something new every day, without forgetting what is already learned.
Get help from these websites, which provide you with courses to learn Arabic and that too with a proper lesson plan. The lessons are arranged in an order that takes you from basic to advance.