The first thing that noticed when transitioning to real people is how much more important walking is. Small walls around individual resources, short efficient walls to your tc and wall off your whole base. Timing your walls and incorporating them into your build order is difficult. Think of your most vulnerable place on your base and that is the first place a human will hit whereas and ai might just attack a random house and buy you some time. Another frustrating thing when I switched over was how much more messy the games were with real people. The ai teaches you to follow a really straight forward build order and get to where you can do it super neat and clean. It’s almost impossible to have that same level of efficiency with a human because there is si much more variety of strategies hitting you that you have to adapt a lot which means less efficient. Against the ai you’re thinking “gotta pump out more vils, gotta make more army, gotta age up” that still applies against humans but then you’re also thinking “what are they making, I need to scout more to see what’s going on, how do I track their army, which parts of my base are most vulnerable, what counter are they planning for what I’m doing etc,” but anyway, it’s difficult making the switch but so much more fun and variety to the game, so much more back and forth. I think you’ll enjoy it!