Once it's in your blood I'm afraid you can't go back.
How true is this!!!
Just go ahead with your PPL it is worth it you will see, and at the end just evaluate your options and take it from there.
If you think it is hard now just wait until the latter stages of training, and the financial burden.
Persistance and willingness are key factors if one wants to persue a career in aviation which in itself presents many challenges along the way.
Like a previous member said, one step at the time, you can't climb 5 steps at once, only one by one.
Think Positive, where there is a will there is a way.
PS - Let's hope A320Rider doesn't read this.