Don't give up.
Where is "somewhere" on your profile (why do people do that??!!).
If you are anywhere near Hinton in the Hedges or Turweston, you are welcome to come and have some fun in the RV8 (no charge except lunch!). You need to realise how much fun can be had in our sport and relax and enjoy.
The flying is easy, the over concentration and (thus) stress is probably what is screwing you up.
Don't give up, there is a huge amount of support out there if only you ask......
Regards,
Jez.