I was like you a coupple of months ago, i could not wait to leave school and start doing a PPL and talking things over with my parents about options and different options of traning, i just wanted to start right away.
With the help of people on this site i decided to stay on at school and have a back up plan ready.Its a good idea to have one and get top grades in math and what not.
I have been in a plane loads of times and when it comes to bad weather i just think, if i die at least it would be doing something i love so i hardly ever get scared, and cmon would you rather die in a car crash or a plane crash.
Regards and happy flying
Josh.