Yes, it is really complicated. That is why we offer Mythic Plus boosting for your best benefit. The reasons why it is so complicated can differ - from the amount of gear you may need to enter professional squads in higher keys to the score you should have to play at these levels. That’s why there is a severe competition.
If you have enough experience, you can cope with any key in time. However, we can boost any level for you, and you will not waste your time in queues or trying to finish one Mythic+ run with a lot of effort.