There are many ways to access youtube from Pakistan or wherever its blocked.. Can easily access Youtube by using proxies and
free VPN such as Hotspot Shield, Tunnelbear, Unblock-US etc they all are free and easy to use after just Install them.. Other best option is free Zenmate Chrome extension just install it and use on chrome browser .. I also heard that Youtube is working in Pakistan now by using https:// in link you can try this..