That article has some handy pointers but a few of them require a paddle shift for optimal use, does the 1.5 FR come with paddles? You'll be able to put the gearbox in manual and shift by pushing the lever forward or backwards but this is a bit more awkward than paddles. I made the switch to DSG last year in a Cupra. Been absolutely loving it ever since and I cant think of a reason to go back to manual. Best advice is to drive with purpose, if you're going for an overtake, commit to it with the throttle, hitting the max travel will engage a gear kickdown and you'll have plenty of torque and power to get the move done. If you half throttle out alongside the car ahead then panick and hit the floor, you'll probably experience a bit or a delay while the car decides what gear you need and then shifts into it, this will only take less than a second but it can feel like an eternity when youre on the wrong side of the road with traffic approaching in the distance.
Other than that just drive as normal, use sport mode when you're pushing hard and D mode for regular pottering around. The gearboxes are incredibly smart nowadays and the upshifts are instant. My DSG does get confused the odd time but then again every person makes the odd mistake while driving manual, a stall, missed shift, wrong gear etc so it balances out. It far outweighs the negatives if you drive in stop go traffic often. No clutching and feathering the throttle anymore, just brake on or off and let the car creep under its own power. Brilliant for steep hill starts too. Just release the brake and accelerate and you'll easily move off with no backwards roll.
