i can takeoff, fly around and land, and loop, but i can't fly inverted, or knife edge and the sorts of things where the controls have to be used differently.
and i have trouble keeping low wing planes level. i'm constantly on the ailerons, back and forth.
Alright so here is my 0.2 cents.
1) for inverted i would try the Simple Scout, it flies great inverted just as well as it does right side up. and in general inverted is difcult even for expreinced pilots. it's a mindset change that you need to do knowing that now that you are inverted everthing is backwards. needless to say that I recommend to try to 3-4 mistakes high so you have enough time to roll out of it. another tip that i can mention is that not all planes will fly inverted well, some will need more power some less, some will need more down elevator than others, but my rule of thumb is if you use 3/4 throttle and a lot of down elevator and the plane keeps diving don't keep trying you'll crash nearly for sure. i've had models that flew great inverted and then after a few crashes just didn't like it.
2) knife edges, for knife edges i had many issues with those never managed to hold them nice even with 3D planes that were very capable of this. a friend thought me a trick that changed my life. use more throttle was all he said and ever since i did that my knife edges look amazing. I still practice doing turns in knife edges using the elevator but getting better at it. so my tip more throttle will help, and based on the more throttle you may need to release some preasure from the rudder.
3) low wing planes. I highly recommend the FT Spitfire the oldest version they created. It really flies good. it's steady and stable, and very very forgiving. It was the first warbird I flew after my mod to the FT TT to make it a spitfire. with that being said i still recommend the original FT Spitfire. I you want to purchase a plane instead of building one than I can also recommend the FMS T-28 1400mm, also a very forgiving plane that flies super stable, just a little expensice if you crash and break something.
and my last tip would be to try an Aura board, i've never used one but trust that can help ease things out.