Hi!
When I first started playing WOW back in 2010, I started with a Druid and leveled him up no more than 40. Although it's pretty easy to take down Mobs, it becomes very hard to fight PvP when the enemy player just keeps moving. The Melee range being short, I'm unable to take down players even lower leveled than me. So, I quit and moved on to a Spriest. I loved it! There was no more issue with my attacks not reaching the target and I was owning it. But I love classes such as Warriors, Feral Druids and DKs more than casters. I started a Paladin just to try it out and when I almost lost a Duel from a player 5 levels lower than me (Also a Paladin) I actually quit WOW.
I started again this year with a Spriest but I really want to play Melee classes. I've seen YouTube videos where players are so good at moving+casting spells. I really can't focus on both the things, I can either move thru AD keys or cast spells. I haven't seen any video which explains how people do it. I'm not a clicker when it comes to moving but it's still a pain understanding how to stay in range to deal Melee damage while moving.
I started an Uh DK. I was able to kill a Hunter and Spriest (same level) solo but that was because they were stupid enough to not move at all. If the target starts moving, I have the issue of not being in range of attacking, almost always.
If anyone has any suggestions or knows any guides on this topic, do let me know. Thanks!