I tried to tackle Liberation of Undermine on my own, but at some point I realized that I just didn't have enough experience. I knew there was an option to buy Liberation of Undermine boost. I started looking for options and came across https://conquestcapped.com/wow/liberation-of-undermine/. The guys offered to help for quite an adequate price. They ended up walking me through the whole raid in a couple hours, explaining the difficult parts and giving me tips that will definitely come in handy in the future. It was great to get support from real professionals. If you are also stuck, don't hesitate, they will definitely help.