You a're right, but that is all that I can do at present. You're right, but that is all that I can do at present.

NThere are no English speakers around me, so I never have the chance to speak with them. There are no English speakers around me, so I never have the chance to speak with them.

Here, the word 'so' is connecting two independent clauses (ie, two complete sentences). I added 'there are' so there was a verb.

Besides, I don’t think I have the ability to talk to English speakers right now. Besides, I don’t think I have the ability to talk to English speakers right now.

I think the main work I should do now ismy focus should be listening more, reading more, writeing more and trying to speak to myself more. I think my focus should be listening more, reading more, writing more and trying to speak to myself more.

Your sentence made sense, but in my experience people say "my focus" instead of "my main work"

I think the main workthings I should dowork on right now is to listen more, read more, write more and try to speak to myself more. I think the main things I should work on right now is to listen more, read more, write more and try to speak to myself more.

However, thank you for your suggestions about learning English and I will take it as a big concerninto account. However, thank you for your suggestions about learning English and I will take it into account.