Something frustrating

Today I talked with my friend through Skpye. This is the first time I talked with a foreign friend via Skpye. My friend says he can understand me even though I think my spoken English sucks. I find that maybe the biggest problem for me is that I cannot express what i want to say in one complete sentence. I make the grammar errors, tense errors, pronounciation errors, and so on. But it seems quite happy for us.
However, at the end, there was a misunderstand between us. My computer does not have a camera, so I just used the micophone to talk with my friend. However, it seems his skype says that I have a camera and it is ready to use. My friend thinks I am not honest with him which make me sad. He is a kind person and helps me with my English. I feel very grateful. But I do not know how to explain this to him. I bought a camera which is at my dorm, and I will not go to school until 25th Feb.
What should I do?

You did a very good job with this essay, Merry.  You can see that there are really very few errors.  It is more difficult for me, as well, to speak than to write in a foreign language.  I am sure with practice you will improve very quickly.  Regarding the camera situation, this sounds rather strange.  I think you know the answer to your question about this matter.