Understanding what a helicopter does and why it does it is the best start.
Learning the Gaz is a blast, I think it's one of the most fun helos to fly. For lifting, start by repping having the helo still, and slowly increasing the collective until it starts to move. This is important, the rotation of the rotors torque you left heavily, so you then counter the rotation with the pedals, (anti torque). Rep that over and over again, get the muscle memory of when she wants to spin and how much pressure to apply to the pedal. Drop collective and balance pedals, rep that until you know when and how to equally apply pedal and collective so it doesn't spin.
From here, begin to get it in the air doing the same process. Eventually you'll learn with some forward momentum, nosing down ever so slightly when to release the pedals to maintain the heading. Now this process is exactly the same in reverse, so for landing, remember that same transition getting up and into forward flight and leaving ground effect, only you now do it while returning to the ground through ground effect. Hoping this is making sense to you.
You'll get faster and faster and faster with this. Thats the basic of getting off the ground, and back on it. Next learning forward momentum with ETL (effective translation lift) can be helpful, and so on and so forth. Take you time, no rush.
I recommend a MP server called angels of levant. It's a non combative SAR server, it rotates between Syria and Caucasus on restarts like every few hours. Basically you fly around and pick up single patients and return them to hospitals. Syria is best for forcing you to learn to land and takeoff it areas you don't get to choose, confined spaced, hover pickups etc. I still to this day go on there and rep for hours getting in and out faster and faster and faster with each rotary airframe. Eventually it becomes natural.
Also, if you have VR, or can stomach and afford it and your PC can run it well. It's basically a cheat code for helos, full depth perception and can get the sense of vertical reference.