Both questions are wordy. Here's how to rephrase and be more concise.
Do you know a website where I can improve my English skills?
Is it possible to talk to some native English speakers on Skype?
Thank you for your corrections. Can you check these questions and answer them (if you can).
1) Do you happen to know the name of a website where I can improve my English speaking and listening skills?
2)I wonder if it would be possible to talk to some English native speakers on Skype.
2 answers
Yes they are many