Sir can I be freelancing ready by completing courses by solo learn pro membership
No, sololearn covers very basics of a language, you would need much more information and experience to work professionally with it.
It depends. This app has many great courses but it won't be good to depend on only one source of knowledge. You can check out w3schools courses and at the same time you just practice a lot. Practice makes perfect. Pro membership provides you with code coach challenges and ad free usage of app