private HttpClient GetNewHttpClient()
{
List<string> proxies = _proxy.GetProxies();
HttpClient client = _httpClientFactory.CreateClient(proxies[_proxyNumber]);
client.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:47.0) Gecko/20100101 Firefox/47.0");
_proxyNumber = UpdateProxyNumber();
return client;
}