Chall,
I've too learned to fly on my own. FMS can be a good help and you should continue practising.
First of all you should try not to fly tight curves, but only wide ones. You also should try to stay at one hight level.
First concentrate on keeping the same hight while flying very wide turns. Then, if you mange that for more then a couple of minutes, try to fly smaller turns. Fly wide circles. But allways try to keep the same height.
Then, if you mage to fly circles in one hight, try to start and do a 180-degree-turn to get back parallel to our airstrip. Try to find the right direction for that.
Try to keep the air-strip's orientation in mind when you fly away from it.
That will give you more orientation, which is important to find your way back for landing.
Do not try to fly like a hero, don't do everything at once. First - if you climp, dont turn. Then if you reached your desired hight, fly straight and then turn.
Try to fly 90-degree or 180-degree turns. That helps again with the orientation.
Later on you can get more and more keener and combine different manuvers like climbing and turning.
If you want to practise landing I can give you this tip: Landing is nothing special. You just have to try to fly parallel to the ground and low. Reduce speed long before you reach the landing zone. Fly slow (not too slow). and then finally when you come over the landing strip just reduce power a bit to let it drop on the runway.
Landing is easier if you get the idea of doing a slow and very low flyby and right in the middle of the flyby you reduce power...
For descending it is helpfull to reduce power a bit, because if you take the plane's nose down it becomes faster, reducing power the right way will maintain speed constant.
I will upload a Basic Trainer model for FMS in a few hours today (when I'm back home). Just have a look onto my webpage (see link below) from time to time...
With that trainer model you should be able to learn to fly very qickly, because it has a very good handling.
But be aware, not to reduce power to less then 25% during level flight - it will stall then. (thats intention for teaching stalling planes).
Eaven during landing you should not reduce power to less than 25% for more than a few seconds.
If you keep that in mind you can train yourself really good with that model because it has very realistic flightbehavior!