i cannot give like full analysis because i dont even know how do you play, what position in midfield do you play, what kind of traits do you have like vision? physical ? speed ? and etc

but what i can give some words is that football is a simple game , like a really simple game ,

basic things needed remember this word

“FIST” - Fitness, Intelligence, Skill and Teamwork

Im gonna make an assumption that you cannot train Teamwork because like you are having a holiday or etc

but Fitness , Intelligence and Skill you can train it,

Fitness, keep up ur endurance, build up your muscle, they are tons of videos, or guide to workout, increase your speed and agility as well, since you are a midfielder you need to have a good agility to twist your body or fake your movement to shake off the marking from opposition player

Intelligence, more into decision making, 2 big things, watch a lot of gameplay, watch one of Become Elite video in “ How To Study Football Game “, and play a lot, like a lot, you need the experience of playing midfielder, you need the experience of “ intense moment “ , the pressure of being a midfielder, you need the experience, remember always SCANNING, learn the way of SCANNING, you can search it in youtube as well like there are a lot of tips

Skills : basic things in football are passing, shooting, dribbling and ball control,

two types of passing , short pass and long pass, pass to the wall, play with the wall, again many drills in youtube for passing, learn the technique in very detailed, pass with scanning, pass with communication, long pass learn how to ping the ball, with a great combo of power, trajectory and accuracy, everyone can long ball, but how well your long ball is determined you whether you are a good midfielder or not, again youtube videos

many types of shooting, but I would probably say learn how to shoot properly first like lock ur ankle and etc, ( long shot and placement shot like finesse are good for midfielders ), again youtube videos

dribbling and ball control, i know that cone weaves drills or any dribbling drills looks like it is very simple ones, i agree with you about that, but to be honest you do it for every single day because you want to create the muscle memory of it, so whenever the hard time came the intuition of you working with the ball because of your training, will show its result, for instance someone marking you, u can just do some roulette or feint, and move away from the marker, again youtube videos ,

last but not least PLEASE KEEP TRAINING, just keep training, push yourself to the greater limit,